The Consultants Directory

The Community of Change Makers in ONE Place

The Cleantech Directory

  • Biofuels  (582)
  • Biopackaging  (155)
  • Carbon Capture  (48)
  • Consultants  (728)
  • EV Charging & Infrastructure  (386)
  • Energy & Storage  (455)
  • Fuel Cells & Hydrogen  (301)
  • Geothermal  (687)
  • Hydropower  (49)
  • IT, AI & Software  (368)
  • Insurance & Underwriting  (39)
  • Interest Organisations  (292)
  • Investors & Finance  (229)
  • Legal Advisors  (143)
  • PR Companies  (35)
  • PV & Thermal Solar  (1638)
  • Recruitment  (130)
  • Recycling  (800)
  • Renewable Utilities  (18)
  • Research  (111)
  • Smart Grids, Cities & Buildings  (389)
  • Wave & Tidal Energy  (69)
  • Wind  (855)
  • 197
  • 198
  • 200
  • 201
  • 203
  • 204
  • 205
  • 206
  • 207
  • 210
  • 361
  • 208
  • 209
  • 211
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221

Your business is not here? Contact us today to get listed

Add My Business


For more than 140 years Croonwolter&dros has been in the vanguard of new developments. Also in this day and age, where electrical and mechanical engineering is increasingly important, we stimulate new technical developments. We have the knowledge, experience and the workmanship to create intelligent systems and integrated sustainable solutions, to develop them further, implement, maintain and manage them.


cruh21 is a strategic project consultancy with a focus on green hydrogen, sector coupling and offshore hydrogen. We support our clients in making their projects fit for the future in the rapidly changing energy industry.

CSP Services

As an independent engineering and consulting company we offer highly specialized and customized measurement technology. We concentrate on solar energy, with a focus on solar thermal power, because we believe this technology forms an essential part in the transition of our global energy system to limit the effects of climate change.


cyclos is Germany's largest expert office on the circular economy. We bring over 25 years of experience and knowledge to the table. Our team works nationally and internationally in all business areas along the value chain. This results in a broad spectrum of expertise that enables us to respond flexibly to complex and new requirements. Our team is interdisciplinary in nature and constantly takes on new challenges. By working together as an interdisciplinary team across the various business areas, we are able to increase our expert knowledge. This way, we always keep our fingers on the pulse, both professionally and legally.


We develop solutions for smart cities and a fair society. With a background in innovative system development, artificial intelligence, IoT sensors, big data, environment, social sciences, service operation and intelligent traffic systems, we have the interdisciplinary knowledge required for the successful development of smart cities.


D-mat's goal is to promote a low-carbon and resource-wise life within the confines of one planet. Our services are suitable for companies, authorities, research institutes, and other actors in society. We are specialized in material and carbon footprint calculations as well as research on sustainable lifestyles.

Your business is not her ? Contact us today to get listed.

Add My Business

Join Our Newsletter

Are you a keen follower of cleantech? Sign up to our newsletter now to stay up to date on all the latest cleantech trends and read interviews from experts.

    I accept the Privacy Policy and Cookie Policy

    Register and Receive the Latest Issue for Free

    Register Here