Wolftank Group at a glance
Wolftank Group is a global technology leader in energy and environmental solutions with over 70 years of experience across all Group companies. Serving customers in more than 20 countries though focusing on the European Union, the Group provides advanced solutions for decarbonizing transportation and building zero-emission mobility infrastructures. Key offerings include mobile and stationary turnkey modular hydrogen and LNG refueling facilities, industrial coatings that provide unparalleled protection for tanks and pipelines in harsh environments, comprehensive environmental soil and groundwater remediation, and recycling services. With this business focus, Wolftank Group benefits substantially from the long-term subsidized investments in infrastructure for the energy transition towards an emission-free economy.
The Group operates subsidiaries in eight countries across three continents under the management of Wolftank-Adisa Holding AG, headquartered in Innsbruck, Austria. Its shares are listed on the Vienna and Munich Stock Exchanges in the direct market plus and m:access segments, as well as on Xetra, the Frankfurt and Berlin Stock Exchanges.
Wolftank Group’s Management
Management 2023:




Supervisory Board 2023:
- RA Markus Wenner, Chairman of the Supervisory Board
- Dr. Andreas von Aufschnaiter, Vice-Chairman of the Supervisory Board
- Dr. Christian Amorin, Member of the Supervisory Board (until June 2023)
- Dr. Herbert Hofer, Member of the Supervisory Board
- Dipl.-Geol. Michael Funke, Member of the Supervisory Board
- RA Raphaela Lindlbauer, Member of the Supervisory Board (as of June 2023)
Wolftank Group locations
| Location | Description |
|---|---|
| Innsbruck (AT) | High-performance epoxy resins, pipe refurbishment, hydrogen refueling projects |
| Tulln a. d. Donau (AT) | Hydrogen competence center |
| Sao Paulo (BR) | Double-wall tank refurbishment and special localized resin production |
| Shanghai (CN) | Double-wall tank refurbishment and training center South-East-Asia |
| Illertissen (DE) | Double pipe construction DRK32, DOPA® Lite, hydrogen refueling systems, Intralogistics |
| Madrid (ES) | Hydrogen refueling systems |
| Marseille (F) | Distribution |
| Grosseto/Moncalieri/ (IT) Sardinia/Naples/Rimini (IT) | In-situ soil remediation, Environmental Due Diligence, Maintenance, soil remediation and recycling of waste |
| Asti (IT) | Component import and distribution, logistics |
| Bolzano (IT) | Distribution, hydrogen/biogas plant construction, hydrogen & LNG refueling projects |
| Gela, Ostellato (IT) | Recycling plants |
| Milan (IT) | EPC engineering services |
| Los Angeles (USA) | Hydrogen refueling systems |
Strategy and values
Climate change and current geopolitical crises demonstrate the need for an energy transition and indicate that the time for fossil fuels is approaching its end. The European Green Deal sets clear targets: EU net zero emissions by 2050. To achieve this goal, hydrogen will play a key role. In March 2023, the EU proposed a new regulation that requires hydrogen refueling infrastructure to be installed at all urban centers and every 200 km on major roads by 2030. In total, about 1,750 hydrogen stations will be needed by 2026 and about 5,000 by 2030. The EU has established its own Hydrogen Bank, a financial instrument to accelerate the establishment of a complete hydrogen value chain in Europe. In addition, many countries are providing subsidies.
At present, only about 180 stations are in operation. The huge gap between the current situation and the need for massive structural growth and pent-up demand, driven by increasing environmental awareness and the commissioning of new LNG and hydrogen fueling stations in Europe, shows the enormous growth potential that can be expected and exploited in the coming years. Companies with many years of experience and a proven track record will be the ones to succeed in this dynamic environment. This puts Wolftank Group at the forefront of the transition to zero-emission mobility.
Wolftank benefits sustainably from the long-term subsidized investments in infrastructure for the energy transition towards an emission-free economy, backed by the very stable and mature core business of environmental remediation. Together with the Industrial Coating and Maintenance business area, which complements the value chain along the refueling infrastructure, Wolftank benefits not only from in-depth market experience and knowledge, but also from a stable order and sales situation, which has a competitive and stabilizing effect on the Hydrogen and Renewable Energies business area in particular.
Strong roots and strategic growth

With roots dating back to 1950, when Petroltecnica in Rimini was founded, Wolftank Group has established itself as a pioneer in environmental engineering and protection, marking a sustainable journey of over seventy years. As an industry leader, the company has actively contributed to the reduction, prevention and remediation of environmental damage caused by industrial and petrochemical activities.
The company’s strategic buy-and-build approach has driven its expansion and diversification into the areas of hydrogen and renewable energies, industrial tank coating and maintenance, and environmental services. Key milestones in recent years include the acquisition of a majority stake in Petroltecnica, entering in a joint venture with Kuwait Petroleum Italy (Q8) named Mares, and organic expansion into new markets such as the US, more specifically, California with the promising environment created by the Inflation Reduction Act. Through these strategic initiatives, the company has expanded its geographic footprint and strengthened its position as a key player in the green economy, demonstrating an ongoing commitment to environmental protection and innovation.
Nevertheless, in the post-pandemic era the focus lies still successfully on the central European Union market.
Excellent position for a successful future
Today, with a comprehensive range of engineering and environmental services, Wolftank Group covers the entire value chain, tackling contaminated sites and facilities with innovative solutions that underscore its commitment to a truly circular economy. This continued focus on sustainability has enabled the company to make significant strides toward achieving climate goals, supported by its state-of-the-art fueling technologies that are integral to developing the infrastructure needed for a future of zero-emission mobility.
Wolftank Group benefits from its strong position in highly fragmented niche markets. The regulatory environment and required certifications create high barriers to entry and protect against emerging competition. The Group has a strong and proven track record and in the field of double wall tank lining, Wolftank is a true global hidden champion – an invaluable asset in these markets where failure to perform can often result in high costs and reputational damage.
With its three business units, Wolftank’s solid business model provides secure returns and optimal cross-selling opportunities:


The company uses its decades of expertise and proven services to drive the decarbonization of transport. The Hydrogen and Renewable Energy unit is the Group’s fastest-growing business. It develops new green technologies for zero-emission mobility, including the transport, storage and refueling of hydrogen and bio-LNG (liquid renewable natural gas). Wolftank designs, builds and delivers turnkey hydrogen and LNG refueling stations. The expertise is based on more than twenty years of experience in this specific sector, allowing the development of a hydrogen product portfolio covering distribution via mobile, container-based technologies as well as the construction of complete refueling stations for both public transport and special applications in private industry. In this area, the Group has a strong foothold and focuses its strategy on exploiting the enormous growth potential that can be expected in the coming years. With its strongest presence in the EU markets, the Group identified North and South America, China and Africa as important regions to strengthen its position; activities or branches in these markets have already started. Further target areas for the future are Australia and India.

While rolling out the infrastructure for a zero-emission future, there is still a substantial portion of the total vehicle population and therefore a need to keep existing, but aging, tanks and traditional refueling stations operational and safe across all sectors and segments. With its Industrial Coatings and Maintenance unit, Wolftank Group has decades of know-how in petrochemical applications for extremely demanding conditions such as high pressures and highly corrosive environments. The Group’s experts implement life extension measures, refurbishment and coat-to-monitor with patented technologies, actively protecting the environment. For the dismantling of traditional fuel stations that have reached the end of their life cycle, the Group offers a turnkey decommissioning service.

In its Environmental Services unit, Wolftank Group offers the most advanced environmental technologies and services to deal with the aftermath of decades of “carbon partying”. Its methodologies and tools enable Wolftank’s teams to analyze and remediate contaminated soil and groundwater. Solutions are customized, cost-effective, and reliable, always in compliance with local, national, and international regulations. The company’s recycling plants return waste to its original components for reuse in the industrial sector.
With these three well-established and to an extent complementary business units, the Group believes it is excellently positioned to capitalize on the transition to green energy and zero-emission mobility and expects to achieve further significant strategic growth. Especially – to underline this once more – as Wolftank benefits sustainably from the long-term subsidized investments in infrastructure for the energy transition towards an emission-free economy, backed by the very stable and mature core business of environmental remediation.
Values – the core foundation
Wolftank Group conducts its business with a strong focus on values. Ethical and social responsibility is embedded in the Group’s DNA, business units and business models. In all its activities, the company aims to positively contribute to both economic and social development. The principles of ecology, innovation and cooperation form the basis of its work. Wolftank Group is committed to the highest quality in its products and services and strives for continuous improvement. As a reliable, long-term partner for its customers, the Group is constantly working to create added value for them with its products and solutions.
Ecology
we supply people around the world with energy and harmonize economy with ecology.

Innovation
we fuel modern vehicles with modern emission-free fuels like Hydrogen or Bio-LNG.

Collaboration
we are recognized experts and technology promoters for the energy transition.

The broad diversity and expertise of Wolftank’s qualified team are key contributors to the quality of work and growth of the company. The personal and professional development of our employees is strongly encouraged and supported, everyone is provided with space and opportunities for training, development and growth, and a positive, empowering and inclusive working environment.
We are established experts and technology promoters for the transition to an environmentally sustainable economy. We have the most effective means and expertise to join the balance of the ecosystem and the growth of customers and partners. We love and respect our planet. Our mission is to make sure that all over the world the natural resources air, water and soil are a healthy and vital resource for mankind and nature as it was originally.
Corporate Governance

Wolftank Group is managed by Wolftank-Adisa Holding AG, headquartered in Innsbruck, Austria. The company has a sound corporate governance in place in accordance with the highest standards, specifically the Austrian Code of Corporate Governance as well as the German Corporate Governance Code. This corporate governance is designed to cope with the changing environment in which the Wolftank Group operates while achieving sustainable growth.
The Wolftank Group’s alignment (voluntary commitment) with the official Corporate Governance Codes serves as a guideline for a qualified and sustainable corporate governance and corporate control in order to promote transparency and increase the confidence of our investors in the Wolftank Group.
The implemented corporate governance ensures a high level of transparency for all stakeholders of the Wolftank Group. With this in mind, the management of the Wolftank Group ensures that all shareholders are treated equally and that all provisions relating to the Annual General Meeting are complied with. In addition to conflicts of interest at the management level, this also regulates the cooperation between the Executive Board and the Supervisory Board, as well as the powers and responsibilities of the Executive Board and the Supervisory Board and their remuneration. Wolftank also complies with disclosure and reporting requirements, both financial and non-financial, rules on insider information, conflicts of interest, ad hoc publicity and independent audits of the consolidated financial statements.
Among others, the Executive Board of Wolftank-Adisa Holding AG has established an internal control system to ensure and guarantee that the individual departments and persons perform the tasks assigned to them effectively and efficiently. Decisions are always made after consultation with the Board or the respective supervisor in accordance with the dual control principle.
The Group companies report the key financial figures from the accounting system to the Management on a monthly basis using standardized reporting packages. Since 2019, a consolidation has been carried out every six months. With regard to the Austrian subsidiaries, the accounting has been prepared in the subsidiaries themselves since 2018, resulting in daily updated figures that have a positive effect on the internal control system. The clear separation between document management and document processing is ensured by different responsibilities.
An internal audit risk control system (IACS) is in place and is performed and documented on an ongoing basis.
Prior to entering into business relationships in areas with crisis potential, inquiries are consistently made and documented with the Austrian Federal Economic Chamber and subsequently with the Austrian Ministry of Foreign Affairs.
At group level, the limitations on the powers of attorney of the Management Board of Wolftank-Adisa Holding AG (the rules of procedure) have also been applied individually to each subsidiary, which allows for further control and risk minimization or early warning.
Code of Ethics
Wolftank Group firmly believes that ethical business conduct is a key component of sustainable growth. For this reason, the company has clearly defined its ethical behavior, which follows the highest standards of business and responsible action. To ensure this good business conduct, the company has policies, rules and standards in place. At the top of this system is the Code of Ethics, which is the fundamental axis around which policies and other procedures are built.
In order to strengthen our Code of Ethics and update it to the current context, we worked in 2023 to present a more comprehensive and appropriate version for the Group as a whole.

Anti-corruption
In addition to the Code of Ethics, Wolftank Group has issued a specific Anti-corruption Policy, which in the particular case of Italy is accompanied by compliance with the appointment of a specific Anti-Corruption Control Board (Organismo di Vigilanza) for any relevant subsidiary. In addition, we work in full compliance with the Italian anti-bribery and anti-corruption law no. 231/2001.
The Anti-corruption Policy is based on the analysis of the activities most exposed to the risk of corruption and was last updated in 2023.

Suppliers monitoring
Our critical suppliers are regularly evaluated with a set of Key Performance Indicators (KPIs) regarding their performance, especially focusing on ESG. We conduct supplier assessments to ensure we are working with those that are aligned with our principles. Our recently launched Code of Conduct for Suppliers clarifies our requirements for practices such as respect for international trade and human rights, anti-corruption, and management of confidential information. We are committed to ensuring that our critical suppliers meet our requirements.
We updated the Code of Conduct for suppliers in 2023 and are currently rolling out the mechanisms to ensure that suppliers are monitored and assessed for sustainability in all Group companies. In 2023, we also started to make consistent use of “Open-es”, a digital platform that provides a concrete support for the sustainable development of companies and their stakeholders, due to easy and intuitive solutions that promote improvement, collaboration and the secure ESG data exchange.

Cybersecurity, privacy and data breach policies
Wolftank Group is committed to promoting a culture of security by establishing and maintaining effective information security measures to protect the confidentiality, integrity and availability of all information that Wolftank Group collects, receives or sends.
To achieve this, and in response to the risks of today’s IT environment, the company developed its Cybersecurity, Privacy and Data Breach Policies. In addition, the Group has clear roles and responsibilities for information security. Wolftank’s Data Breach and Privacy Policy was last updated in 2023.

Control measures: whistleblowing
To maintain the highest standards of integrity in all our operations and business conduct, the Wolftank Group has established a whistleblowing process. Anyone who becomes aware of any improper conduct (misconduct or criminal conduct) within the Wolftank Group is able to report it.
The company has a dedicated position to receive reports of suspected irregularities, analyze this information and determine any action to be taken. The report may concern any information relating to possible violations, behaviors and practices that do not comply with what is established in the company’s Code of Ethics and Corporate Policies, and/or that may cause damage or harm to Wolftank Group, its subsidiaries, employees or third parties, and that relate to any of the following matters:
- violation of the Code of Ethics and/or the Corporate Policies
- corporate administrative liability
- HSSEQ matters in general
- mobbing or unrespectful behavior
- safety matters specifically
- anti-corruption
- violation of business ethics
The utmost confidentiality and anonymity of the reporting parties is maintained, as well as the integrity of the persons mentioned in the reports protected.
The team dealing with the reports carries out the necessary investigation and audit, determines the corrective action and its monitoring.
ESG policies
In order to comply with the principles and guidelines of correct and up-to-date corporate governance, the management of Wolftank Group introduced the following ESG policies which are regularly reviewed, adapted and revised:

Environmental policy
We implemented the environmental policy to demonstrate our commitment to sustainability and responsible stewardship of natural resources. This policy outlines our group’s objectives and strategies for minimizing its environmental impact across its operations and serves as a guiding framework for integrating sustainability into Wolftank’s core business strategy and operations, aiming to achieve a balance between economic growth, social responsibility, and environmental protection.

Human rights policy
We implemented the human rights policy to uphold fundamental principles of fairness, dignity, and equality for all individuals impacted by our operations. This policy outlines the group’s commitment to respecting and promoting human rights within its sphere of influence. Our human rights policy serves as a framework for integrating human rights considerations into our business practices, fostering a culture of respect, accountability, and transparency in its interactions with all stakeholders.

Occupational risk policy
We implemented an occupational risk policy to ensure the health, safety, and well-being of our employees in the workplace. This policy outlines Wolftank’s commitments to identifying, assessing, and mitigating risks associated with its operations and serves as a framework for managing workplace safety and health, protecting employees from harm, and ensuring the company’s long-term sustainability and success.

Equal opportunities & diversity policy
We implemented an equal opportunities and diversity policy to promote fairness, inclusivity, and respect for all individuals within Wolftank. This policy outlines our commitment to providing equal opportunities for employment, advancement, and treatment regardless of characteristics such as race, ethnicity, gender, sexual orientation, age, disability, or religion and serves as a framework for promoting a culture of inclusivity, fairness, and respect within the organization, contributing to employee satisfaction, organizational success, and societal progress.
Key products & services
Hydrogen & renewable energies
- 20+ years of H2 experience
- 15+ countries currently served by our H2 business area
- 100+ H2 sites running our software
- 150.000+ kg of H2 safely refilled into vehicles in approx. 25,000 single H2 refueling operations
Hydrogen is a very versatile, environmentally friendly and clean, non-polluting energy carrier: its use produces only water. It is also very light and has an extremely high gravimetric energy density, i.e. a lot of available energy with little mass requirement of H2. Green hydrogen, i.e. hydrogen produced from purely renewable energies, is a “game changer” for decarbonization. Wolftank Group provides long-standing expertise, invests constantly in R&D and thus enables the necessary hydrogen infrastructure for an emission-free future. Our many years of experience are reflected in the high quality, efficiency, performance and reliability of our hydrogen solutions.




Hydrogen storage and transport
We provide mobile storage systems for the transport of hydrogen, such as our certified Wolftank H2 Transport Container, which is able to transport approx. 320kg of hydrogen under 300 bar pressure. With this state-of-the-art technology, hydrogen can be transported efficiently over short or medium distances and temporarily stored at the hydrogen refueling station or handling terminal.
Key products
Wolftank H2 Transport Container
is an innovative solution that provides both energy and time saving during the filling and emptying processes. It can be transported by any logistic provider specialized in the transport of dangerous goods (ADR Container haul).

Hydrogen refueling
We offer hydrogen refueling solutions such as our Wolftank H2 Dispenser: a safe and reliable dispensing system, able to refuel all kinds of fuel cell electric vehicles (FCEV). The Wolftank H2 Dispenser is provided in multiple variations up to a high refueling flow of 120g/s to refuel heavy vehicles (bus, truck and train) and light vehicles (passenger cars and forklifts) at a pressure of 350 bar and 700 bar.
Key products
Wolftank H2 Dispenser
is a stand-alone unit with an in-house software developed by our hydrogen competence center EDC-Anlagentechnik to integrate and update any refueling sequences, making hydrogen dispensing safe, fast and economic. The solution is recognized for its automated easy and secure operation.

Wolftank H2 Compressor Container
is a redundant compressor unit that we have developed to complement the industrial indoor dispensers, with special emphasis on availability and proper maintenance. This solution complies with industrial standards. A large number of dispensers can be connected and operated in parallel using a high-pressure pipeline as the compressed hydrogen distribution network. This system can be scaled by changing the operating parameters or by using multiple units operating in parallel. Another advantage is the very small space requirement at production sites, which was also a key parameter in the development.

Hydrogen distribution and infrastructure
We have developed remarkable solutions, products and projects in the field of hydrogen as an energy carrier for mobility. As an example, since 2002 our Group Companies have been involved in the automation and electrical engineering design of more than 100 hydrogen refueling stations worldwide. One of our major projects was implemented in 2021, when we developed one of Europe’s largest hydrogen refueling stations for buses in Bolzano. The net construction time from the kick-off to the first bus refilling was only 9 weeks, and the result speaks for itself: this station serves a fleet of hydrogen buses for public transport which require less than 10 minutes for refueling by bus back-to-back. It allows parallel refueling and has a close to 100% availability due to its design considering also the redundancy of critical components. This very station will be expanded further in 2024, as Wolftank won the expansion tender.
Key products
Wolftank H2 Mobile Station
is a modular, semi-mobile refueling solution for hydrogen vehicles of all types that can be upgraded as demand changes. Thanks to its unique modularity and high performance, it is in almost no way inferior to a small stationary refueling system – and requires almost no construction measures. Wolftank H2 Scalable Stationis characterized by its versatile connection and control system, designed to adapt to evolving demands.

Wolftank H2 Scalable Station
is a modular, semi-mobile refueling solution for hydrogen vehicles of all types that can be upgraded as demand changes. Thanks to its unique modularity and high performance, it is in almost no way inferior to a small stationary refueling system – and requires almost no construction measures. Wolftank H2 Scalable Stationis characterized by its versatile connection and control system, designed to adapt to evolving demands.

Wolftank H2 Pro Station
is the most comprehensive and innovative solution for large scale hydrogen mobility. Our full services include beyond the technological package engineering, procurement and construction (EPC), enabling our customers to receive a turnkey hydrogen station in a short time.

Hydrogen solutions for intralogistics
Hydrogen is a very suitable energy carrier for use in logistics. In contrast to battery-powered forklift trucks and industrial trucks, high daily mileage can be ensured by refueling in usually less than 3 minutes. Thanks to our highly innovative solutions for the intralogistics sector, our customers in this segment work more efficiently and more cost-effectively. We offer solutions for both indoor and outdoor refueling for the intralogistics sector.
Key products
Wolftank H2 Mobile Station Lite
is a hydrogen refueling solution is an all-in-one refueling solution for hydrogen, especially developed for the intralogistics sector. As a enabler for test fleets or small fleet operation, it is easy to install and to operate with less effort. The redundant system is scalable and adaptable for all sizes of hydrogen-powered logistics vehicles, available as standard or advanced version. This small containerized solution is primarily used for outdoor refueling.
We have developed a highly efficient, space-saving refueling solution for hydrogen indoor refueling in the intralogistics sector, especially for production halls of large industrial and logistic companies. Part of the refueling system is installed outdoors, e.g. on the roof, while only the necessary dispensing unit is installed indoors.

Power backup systems
Another field of application for our technology and refueling expertise is the fuel supply of power generators. An example of our work in this area is a cooperation with the German fuel cell specialist SFC Energy. Our state-of-the-art system supplies electricity produced from hydrogen as emergency backup for buildings, telecommunication towers and data centers.
Key products
Wolftank Smart Cartridge
provides compressed hydrogen to be used in backup systems. The smart cartridge solves the problem of distribution and ensures the availability of hydrogen in large networks of hundreds or thousands of backup systems, as in the telecommunication network industry. The smart cartridge is constantly monitored for its position, hydrogen storage level, usage and safety parameters.

LNG distribution
We have contributed to build a substantial part of today’s LNG refueling station network in Italy. As an example, we started the cooperation with Italian gas company SNAM years ago, delivering turnkey project management and full construction services to build LNG truck refueling stations.
Key products
Wolftank LNG Refueling Station
is the most comprehensive and innovative solution for LNG mobility. Our full services include engineering, procurement and construction (EPC), enabling our customers to receive a turnkey LNG station in a short time. Furthermore, we provide maintenance with our own teams even in cryogenic environments such as liquid natural gas (LNG at -160°C) and liquid hydrogen (at -253°C).

Battery electric vehicle chargers
We provide a complete solution to construct large networks of Electric Vehicle Chargers, mainly DC Fast and Hyperchargers (HPC) up to 400kW of DC Power, but also AC Chargers up to 22kW. We have contributed to the construction of the European HPC (Hyper / High Power Charger) Electric Charging network through our unique knowledge of the existing fuel retail network (a true USP in this industry) and the applicable standards and regulations, as well as our own maintenance and construction teams in the field.
Key service
We provide turnkey project management for the installation and commissioning of large High-Power Charging (HPC) networks (> 100) throughout Europe.

Industrial Coatings and Maintenance
- 25,000 single H2 refueling operations
- 30,000+ commercial tank refurbishments (repair and/or upgrade to double wall/floor)
- 50,000+ commercial tank cleaning operations
- 1,000,000+ m² refurbished to double wall/floor with the DOPA® system
- 5,000,000+ m² coating with EPOFLEX® products
- 3,000+ leak detection systems for double-walled tanks and piping manufactured and installed (of which 1,000 were remotely monitored)
The Industrial Coatings and Maintenance division of Wolftank Group significantly contributes to the industrial growth and extension of asset life spans. We are dedicated to high-quality refurbishment of industrial assets, primarily various types of tanks, as the most durable and cost-effective solution for our customers. We provide solutions for tanks, pipes, sumps and forecourts of retail fuel systems, thus extending the lifespan of these facilities. Our focus on sustainability is reflected in a range of products and services designed to help keep resources in use, without the need to extract new raw materials to replace old facilities.
All our processes are certified to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018. In addition, our resin production processes are monitored by TÜV Süd, which also tests the mechanical, chemical and thermal properties of our DOPA® and EPOFLEX® technologies to ensure the highest quality standards for our customers.




Industrial coatings
Our portfolio includes a broad range of products designed to endure harsh environments, including continuous contact with crude oil, light and heavy oil derivatives, and various fuels. We specialize in providing long-term corrosion protection and contributing to structural and semi-structural layer systems. Wolftank Group’s expertise extends to the sustainable upgrading of service stations, with technologies designed to prevent spills and extend the operational life of fuel storage and distribution facilities. Our exclusive patented DOPA® tank lining system and continuous remote monitoring techniques represent the forefront of our innovative approach to ensuring environmental safety and asset integrity.
We also protect the handling, preservation and storage of the most precious liquid of all: water. The provision of drinking water and the containment of wastewater is an increasing challenge for both public and private companies. Our portfolio offers high-quality coating systems to seal water sumps and to protect vessels and pipes, irrespective of whether they contain fresh, hot, saline or waste water. With our innovative coating systems and our global distribution network, we successfully join the water value chain and preserve the water quality. We provide long-term asset protection against corrosion, deterioration, infiltration and leaks.
Key Products
Adisa® Epoxy Resins:
Adisa® is the leading brand of coating and lining products that deliver excellent results. The high competence of each Adisa® solution guarantees a flawless and long-lasting result in the enhancement of the customer’s tanks and vessels. In addition, the solvent-free and non-flammable nature of Adisa® products ensures environmentally friendly application, easy storage and transport.

Structural tank reinforcement with DOPA® lining system:
Our DOPA® lining system is suitable for converting single-wall tanks to double-wall tanks used to store potentially hazardous liquids such as automotive fuels or chemicals. DOPA® ensures the highest level of protection by using our proprietary continuous vacuum monitoring of the interstitial space. This enables the system to achieve the highest standards of environmental safety and truly avoid any environmental damage or pollution.

DRK32® pipes:
DRK32® is our double-walled pipe system consisting of an inner and an outer pipe. The space between the inner and outer pipe serves as an interstitial space and is part of a leak detection system, which is usually monitored with inert gas using the positive pressure principle or with negative pressure (vacuum) leak detectors. Petrol refueling stations, the chemical industry and plant construction are key customers.

Maintenance
We offer essential services for the protection and refurbishment of tanks, vessels, and pipelines exposed to aggressive liquids like modern biofuels containing ethanol, methanol, and biodiesel.
Our maintenance services include tank cleaning, sludge removal, and emergency spill response. These operations are vital for maintaining operational efficiency and environmental compliance. Our strongest team in maintenance is provided by Mares, delivering thousands of service calls per month and perfectly ready for the future demand for maintenance in LNG and hydrogen.
Key maintenance services
Comprehensive station maintenance:
We provide extensive maintenance services covering corrective and scheduled maintenance to ensure full functionality of fuel stations. In key Italian regions, we cover over 4,000 fuel stations, emphasizing environmental sustainability and the adoption of sustainable energy and mobility solutions.

Innovation in maintenance:
Leveraging automation systems for preventive and predictive maintenance, we assess equipment conditions before field deployment, optimizing maintenance operations and environmental sustainability: Key Innovations of Coating and Maintenance, as the patented “No Man Entry©” Technologies

Bruco:
An ATEX Zone 0 certified device designed for the cleaning of underground and aboveground fuel tanks. Equipped with swiveling sprayers and a suction port, it enables efficient cleaning while avoiding human entry into hazardous environments.

Superbruco:
Evolved from the Bruco system, this device features two telescopic mechanical arms with rotary movement, allowing it to operate in larger tanks and environments.

Bruco Light:
A compact version capable of accessing tanks through a 4-inch inlet, designed for washing and cleaning with a three-dimensional rotating head. Suitable for operation in Atex Zone 0 environments.

Polifemo:
An ATEX Zone 0 certified video inspection system, capable of entering through a 60 mm diameter opening for leak checks and internal inspections.

Ragno & Camaleonte:
Robotic systems designed for non-intrusive inspection and maintenance tasks, including thickness measurements and surface blasting, without requiring human entry into confined spaces.

B.C.U.T.S.:
An adaptation of the Bruco system for large tanks, modified to operate in expansive and challenging environments, including Atex Zone 0 areas. This customization allows for flexible application in a variety of tank sizes and conditions.

F.T.M. Versatile Maintenance Robot:
A multi-functional, pneumatically powered robot designed for performing a wide range of tasks in underground tanks and confined spaces. Equipped with capabilities for sandblasting, painting, washing, and surface thickness surveying, F.T.M. is a comprehensive solution for complex maintenance and refurbishment tasks, significantly improving operator safety.

Tank Cleaning Robots (TCR®)
Multi-functional, hydraulically powered robots which enhance operatorsʼ safety by performing various asks in fuel tanks and confined spaces. The TCR® robot technology ranges from solutions which do not require opening the manhole, such as our TCR 6/7®. The TCR 15® which is operating via a rotating lance and pressures over 100 bar, it effectively cleans storage facilities and vacuums residues.

Tank cleaning robots provided by Petroltecnica and Wolftank Austria.


Environmental Services
- >3,000 Environmental consultancies, due diligences and investigations carried out
- ~6,500 Environmental remediation projects for soil & groundwater (partly with in situ equipment) completed
- >2,000,000m2 Remediated area
- >500.000 tons per year capacity of own recycling plant
- ~1,300 Environmental Emergency Responses (PIA) carried out
- >1,000 obsolete refueling stations successfully decommissioned
We are experts in environmental engineering and remediation of soil, water and decommissioning of obsolete infrastructure. We have been successfully managing environmental projects for more than two decades and support our clients in the responsible development of their business activities. Our solutions are tailored to fit, cost-effective and reliable, always in compliance with regional, national and international legislation. Our projects are approached from a holistic point of view, with a 360º vision that covers the entire work process. Our services are based on the concept of circularity, including waste management to implement the entire recovery cycle.
The part of the infrastructure that is no longer needed is dismantled and the soil is restored to its original healthy state.




Environmental consulting & engineering
We advise and support our customers in environmental, legal, safety and risk management in scenarios such as sale of real estate in which our specialists deal with authorities in the course of determining potential environmental liability. Our methodologies and tools permit our solutions teams to analyze soil and groundwater contaminated with hydrocarbons with the deployment of appropriate environmental due diligence. Chemical analysis in mobile accredited labs and immediate identification of pollutants in situ, reducing project costs.
Key services
We provide end-to-end environmental consulting services, from preliminary investigation and liaison with local authorities to implementation of in-situ solutions, final site remediation and off-site disposal. Through environmental site assessments, we identify contamination phenomena and apply Best Available Technologies Not Entailing Excessive Costs (BATNEEC) for site remediation. Our integrated approach covers the technical and administrative path and ensures that sites are returned to their original, uncontaminated condition.
Wolftank Group’s expert team carries out Environmental Due Diligence following the different existing standards and guidelines, in particular the benchmark standard defined by ASTM (American Society for Testing and Materials) with its specific protocols ASTM E1527- 13 and ASTM 1528- 14 issued. An Environmental Due Diligence is a key step in strategic decision-making processes such as business acquisitions, mergers or investments. Our team strives to provide accurate and thorough analyses regarding the environmental impact and legal implications of the business transactions involved. Through this advice, our clients can make informed decisions, ensuring compliance with environmental regulations and adherence to corporate responsibilities.

Soil and water remediation
In our in-situ environmental services, highly trained technicians carry out analysis and installation of technologies to clean contaminated groundwater and soil.
Key services and innovations
Soil remediation:
Using advanced contaminant removal in situ technologies, including soil vapor extraction, bioventing, multiphase extraction and thermal desorption, we efficiently restore soil to healthy conditions and remove contaminants such as hydrocarbons and heavy metals. While the business remains operative, we take care of restoring the surrounding environment and bringing it to its original healthy state. In ideal conditions over 99% of the contamination can be remediated.

Groundwater remediation:
Cleaning, sanitizing, and restoring groundwater when damage such as spills has occurred. We have long-term experience in the successful on-site implementation of pump & treat, air atomization, bioremediation, microdiffusion of oxygen and monitored natural attenuation technologies.

Environmental emergency response:
Our specialized teams, equipped with state-of-the-art vehicles and equipment, are on call 24/7 to respond to environmental emergencies, ensuring immediate safety and damage containment. Training and professional development keep our teams and suppliers at the top of their game.

Automatic Safety System (S.A.M.I.S.):
An advanced technology for intercepting contaminants in water streams. This autonomous, remotely monitored system requires no human intervention and provides timely spill detection and pollutant recovery while reducing intervention costs.

Plastic Collection and Recovery System (“Plastic Catcher”):
An innovative modular barrier system that captures floating debris, particularly plastics, in waterways. Utilizing the natural movement of water currents, this system is an effective waste collection and environmental protection solution.

Waste and industrial water treatment
Waste is recycled into its original components, which are then reused as recyclable material for industry.
Key services
Complete waste management cycle:
From storage and disposal to treatment and recovery, our services are designed to maximize the reuse of waste materials (soil, sludge, liquid waste) and convert hazardous and non-hazardous wastes into reusable resources.
We operate one of Italy’s largest recycling plants to recycle hydrocarbon waste to fuel. Our waste management facilities have a total area of 20,000 square meters, of which 6,000 square meters are covered and dedicated to authorized activities such as storage, disposal, treatment and complete waste recovery.

Industrial Water Treatment:
We design and install treatment facilities for a variety of industries, addressing wastewater treatment with technologies such as water purification, sludge stabilization, and bioremediation. Our solutions are tailored to meet the specific needs of our clients and ensure quality and safety standards with a zero-waste target.

Quality management
Wolftank Group is committed to establishing a quality management and assurance system to provide customers with products of reliable quality that they can use with confidence. Our quality department ensures excellence in our products, services and processes. All our equipment and installation procedures are tested and approved by TÜV and/or other certified bodies. In this regard, Wolftank Group follows and continuously optimizes the leading operational management system according to the following international standards:
- ISO 9001: 2015, Quality Management Systems
- ISO 14001: 2015, Environmental Management Systems
- ISO 45011: 2018, Occupational Health and Safety Management Systems
In order to participate in public tenders in Italy, it is necessary to hold a “SOA” certificate. This is an mandatory requirement to prove that the company is capable of carrying out, directly or as a subcontractor, public works with a specific tender value. In addition, the Italian companies of Wolftank Group are registered in the National Register of Environmental Managers (ANGA), established by the Italian Legislative Decree 152/06 and located at the Italian Ministry of the Environment and Land and Sea Protection, which is divided into a National Committee and regional and provincial sections.
Petroltecnica
- SOA categories:
- OG1 cl. IV – Civil and industrial buildings
- OG3 cl. III bis – Roads, highways, viaducts, railways, subways
- OG6 cl. III bis – Aqueducts, gas pipelines, oil pipelines, irrigation and evacuation works
- OG9 cl. V – power generation plants
- OG12 cl. VII- Remediation and environmental protection
- OS23 cl. III bis – Demolition of works.
- ANGA Environmental Permits:
- Cat. 2 bis, Own waste transport;
- Cat. 4 and 5 cl. E, Transport of P and NP waste;
- Cat. 8 cl. B, Trade and brokerage;
- Cat. 9 cl. A, Remediation of contaminated sites;
- Cat. 10 B and A cl. D, Remediation of goods containing asbestos.
Rovereta
- ANGA Environmental Permits:
- Cat. 8 cl. C, Trade and brokerage
Mares
- SOA Categories:
- Cat. OG12 – Cl. II bis – Remediation and environmental protection
- ANGA Environmental Permits:
- Cat. 2 bis, Own waste transport;
- Cat. 8 cl. C, Trade and brokerage;
- Cat. 9 cl. C, Remediation of contaminated sites;
Wolftank Italy
- SOA Categories:
- Cat. OG 1 cl. II – Civil and industrial buildings
- Cat. OG 3 cl. II – Roads, highways, viaducts, railways, subways
- Cat. OG 6 cl. III bis – Aqueducts, gas pipelines, oil pipelines, irrigation and evacuation works
- Cat. OG12 cl. IV – Reclamation and environmental protection
- ANGA Environmental Permits:
- Cat. 4 – cl. F, Collection and transport of special non-hazardous waste
- Cat. 5 – cl. F, Collection and transportation of hazardous waste
- Cat. 8 – cl. C, for trade and/or brokerage of hazardous and nonhazardous waste
- Cat. 9 – cl. A, Remediation of contaminated sites
We also work in full compliance with the Italian Anti-Bribery and Corruption Law no. 231/2001, which is a more specific approach than ISO 37001.
On the other hand, Wolftank Group is an active member of several Technical Committees (TCs) and associated working groups for the maintenance of EN standards.
In 2024 Wolftank will start the certification process according to the following standards:
- EMAS – “Eco-Management and Audit Scheme” Certification
- SA8000 Ethical Certification – “Social Accountability System”
- UNI/PdR 125:2022 – “Gender Equality”
Research & Development
At Wolftank Group, innovation is at the heart of our operations. Our commitment to research and development (R&D) is demonstrated by the allocation of approximately 10% of our annual profits to foster new solutions and enhance our diverse portfolio. Our approach to in-house product development, particularly in niche markets, ensures that we maintain complete control over our product lifecycle. This has resulted in the acquisition of over 20 patents, highlighting key innovations such as

DOPA®:
A pioneering coating system that employs double-wall technology to strengthen tanks against leaks.

ADISA®:
A proprietary resin known for its high chemical resistance, continuously optimized for versatile applications.

DRK32®:
Our flagship double wall steel pipe that sets the industry standard.
Our R&D efforts span across all our businesses and focus on creating unique selling propositions, increasing efficiency and improving worker safety through technical innovation. In particular, our current global efforts are heavily focused on hydrogen and renewable energy.
2023: A year of technological milestones
In the last three years but especially in 2023, our R&D team made significant progress on existing and new technology developments, including
- advancing dispenser development for CNG and hydrogen blends
- the Wolftank Smart Cartridge, enabling scalable operations for fuel cell grid backup systems
- integration of commercial payment systems into new hydrogen refueling facilities
- mobile hydrogen storage and refueling solutions approval
- processes for certifying natural gas pipelines for hydrogen transport
- expanded application of DOPA® beyond the oil and gas sector
- a patented new leak detection system for existing single wall infrastructure
- industry 4.0 compatible DOPA® leak detection devices
- innovations in pipe rehabilitation and LPG system design
- development of a remote well monitoring system and an LPG tank inspection robot
- patented solutions for mobile LNG and hydrogen refueling and a hydrogen logistics container
- metrological certification for Wolftank dispensing solutions
- the H2 Mobile Station Lite and the H2 Compressor Container – state-of-the-art solutions for hydrogen refueling and compression
- environmental and site remediation technologies
Focus on sustainable mobility
A key objective of our R&D is to advance sustainable mobility solutions. Our innovative hydrogen refueling line for intralogistics is proof of this focus, providing efficient hydrogen-powered solutions for a variety of vehicles. In addition, our efforts to improve hydrogen refueling stations address the high-capacity needs of trains and large transport operators, underscoring our commitment to decarbonization beyond mobility.
Digitalization and collaboration
Our IT specialists play a crucial role in the digital transformation of Wolftank Group’s processes, developing proprietary tools that not only benefit our operations, but also offer digital solutions to our customers. A notable achievement is our collaboration with SFC Energy AG in the development of zero-emission hydrogen fuel cell back-up generators, exemplified by the installation at Wolftank’s Rovereta plant in Italy, which also serves as a hub for hydrogen system testing, training and demonstrations.
Leading through expertise
Wolftank Group’s leadership in green energy is further solidified through contributions to key industry publications and collaboration with key associations. CEO Peter Werth’s participation in the VDE’s “White Paper on the Hydrogen Economy” is a prime example of our commitment to shaping the future of hydrogen in the energy sector. In addition, our presentation at the Forum Alpbach on the efficient construction of hydrogen refueling stations using dual-purpose storage tanks highlights our innovative approach to reducing costs and infrastructure needs.
At Wolftank Group, our R&D efforts are an integral part of our mission to lead the transition to a sustainable energy future and demonstrate our continued commitment to innovation, safety and environmental protection.