Customer groups
Our customers

Our customers

Customer groups

Large companies

We support large companies, groups of companies and corporations in setting up and implementing their sustainability and climate strategies.

Our strengths in cooperation with companies

Our comprehensive experience in the introduction and implementation of management systems and environmental and climate strategies in large companies with several locations or subsidiaries is incorporated into our consulting approaches and enables us to integrate lean and efficient processes in heterogeneous corporate structures. We rely on first-class technical advice and professional project management, which provides the client with a comprehensive overview of the project status at all times. Our major clients include banks, insurance companies and a large number of globally operating multinationals. 


You can find our entire range of services for companies here.

Small and medium-sized enterprises

Since Arqum was founded over 20 years ago, we have supported over 3,000 small and medium-sized enterprises (SMEs) from various sectors in their transformation to a sustainable way of doing business.

Our strengths in cooperation with SMEs

When supporting SMEs, we focus on personal and customised advice, first-class professional services and target-oriented project management. With our enthusiasm for sustainability topics and extensive consulting experience in almost all sectors, we are committed to permanently improving our clients’ competitiveness. Our work with your organisation therefore aims to build in-house competencies for a continuous and independent continuation of our project results.

You can find our entire range of services for companies here


For 20 years, we have been supporting municipalities in holistic climate protection, resource and energy efficiency as well as in long-term projects to improve sustainable development in the region.

Our strengths in cooperation with municipalities

In cooperation with municipalities, we have been implementing climate protection, energy and resource efficiency projects such as ÖKOPROFIT or KLIMAfit in Germany for over 20 years. At the same time, we advise many municipalities on the development of their own climate protection strategies and concepts and support them in building up internal competences. In addition, we advise municipal administrations and businesses on their path to improve their own environmental performance. The starting point for our solutions are efficiency and productivity increases based on economically attractive as well as technically and organisationally feasible measures. In this way, we create sustainable added value for your municipality.

You can find our entire range of services for companies here.

Public administrations

We support public administration in the development of practice-oriented sustainability concepts and customised solutions.

Our strengths in cooperation with public administrations 

Thanks to our diverse experience in the public sector, we understand the very different structures and processes of public institutions such as authorities and ministries and are able to address them with appropriate advisory approaches. For many years, we have been supporting federal, state and municipal administrations in the development and implementation of their own climate and environmental goals in individual or group projects. We also accompany you during the integration and implementation of the developed measures, thus providing constant support on the way to the desired goal.


You can find our entire range of services for public administration here.

Politics and research

For more than 10 years, we have been supporting political decision-making processes in German climate and environmental policy with R&D projects in the field of sustainable management.

Our strengths in cooperation with politics and research

We combine our extensive practical experience from working with
companies with scientific perspectives and partners and
and make statements on the instruments that can be used to promote environmental, energy
and climate protection in the economy. These positions
e.g. on behalf of the German Federal Ministry for the Environment and the
Federal Environment Agency and publish our findings in various guidelines,
concept papers and other publications. 


You can find our entire range of services for authorities and ministers here

International cooperation

For more than 15 years, we have been active on an international level, supporting our clients and project partners in the implementation of their sustainability and climate goals. In doing so, the focus is increasingly on the integration of suppliers and the development of local competences.

Our strengths in international cooperation & collaboration

Through the large number of international projects we have carried out, we have gained a lot of experience with the challenges of implementing climate and environmental goals with international project partners and their supply chain. Similarly, we can support you in conceptualising and applying for funding and work together to develop a tailor-made project for your company. 


You can find our full range of International Cooperation & Collaboration services here