Co-development of and co-investment in biomethane projects

Drawing on many years' experience, we help you develop your projects, from compliance with the relevant regulations right through to operation.


Designing and building

With more than 85 biomethane plants across France, we have all the relevant experience to assist you in building your own, be it a discontinuous dry or wet digester, to transform and recycle organic waste.


Operating and maintaining

Since 2014, we have helped optimize the performance of biomethane plants. To do this, we offer services that leverage all operational drivers requiring concurrent management.



As organic waste experts, we bring together waste producers and short-circuit plants to recycle waste and benefit the country as a whole.


Our trusted partners


Marguerite is pan-European equity fund that helps kickstart key investments in the energy, renewable energy and transport sectors. It is the first fund of its kind established by the main European public finance institutions.

Active across Europe and with the European Investment Bank as its primary investor, it is the KEON group’s majority shareholder. Its involvement supports the group with its international expansion.

IDIA crédit agricole

IDIA Capital Investissement combines the activities of Crédit Agricole S.A.’s minority capital support businesses by assisting ISEs and SMEs in all business sectors and provides recognized expertise in the agrifood and wine sectors, health and old-age, tourism and energy-transition sectors.

The total funds under IDIA Capital Investissements’ management amounts to 1.8 billion euros.


SCARA: a century-old agricultural cooperative. Its core business focus is the collection and marketing of grain, including wheat, barley, rapeseed and sunflower.

Committed to environmentally friendly processes, it offers a range of innovative and effective services to support sustainable agriculture.


The founders of the KEON group have always been sure about the benefits of biomethane production and the crucial role it will play in the future. They also strongly believe that global efforts are needed for the success of such a project. That’s why employees seeking greater involvement in this innovative business venture can support its development by purchasing shares in the company.

Thanks to this virtuous business model, almost 50% of KEON’s employees and founders are now company shareholders. We would like to extend our thanks to each one of them.

Get in touch

Call us

Need help or have a question about your biomethane project? We're available from 8 am to 6 pm, Monday to Friday. Feel free to get in touch if you need our help.

+33 (0)1 57 21 34 70

Come and see us

Want to meet us in person? 
You can find us at 52 rue Paul Vaillant Couturier - 92240 Malakoff or at 3 Rue Galilée - 44 340 Bouguenais

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