Presentation of the Soltena network
Who are we?
Soltena is a regional cluster for the circular economy and the ecological transition in Nouvelle-Aquitaine. It is also a network of committed actors and houses a resource centre to support the actions, projects and innovations of companies and local authorities.
It has an operational team and network of companies offering expertise and practical environmental solutions in various areas including biodiversity, water, the circular economy, energy, air quality, and sites and soils.
With the Région Nouvelle-Aquitaine and ADEME, Soltena carries out awareness raising work and supports companies and local authorities with their work in the circular economy (eco-design, industrial and regional ecology, material efficiency, etc.), the energy
transition (optimising bills, energy efficiency, renewable energies), as well as preserving the environment and natural resources (water transition, biodiversity, sustainable planning and environmental health).
Soltena also encourages the green economy in Nouvelle-Aquitaine by promoting solutions and the expertise of companies in the region, by creating environmental synergies and developing collaborative projects.
The network is now also opening up to Europe and participates in European projects such as the Interreg Sudoe Scaira project (coordinated by Aerospace Valley, 2024-2026) as a beneficiary partner. As an advisory structure within the project, the cluster
offers training to incubated start-ups, developed through its members’ expertise. Training includes “Integration of industrialisation” (road-map sustainability), “Measurement and the impact of an industrial project” (on the green transition and the region), as well
as the organisation of B2B meetings between start-ups and industrialists and B2F meetings between start-ups and funders.

To conclude, Soltena has created a space which is conducive to the creation of technical and commercial synergies and the implementation of collaborative, cross-cutting and innovative projects. It aims to encourage approaches with a positive impact while contributing to the creation of jobs and value in Nouvelle-Aquitaine.
Governance
Soltena is governed by a Board of Directors with twenty members. Representatives of the Région and ADEME are permanent guests.
The current Board of Directors is as follows:
Our members
Soltena now brings together some 200 committed actors who work – through the products they develop, the practices they integrate, and the services they offer – towards the energy transition, the circular economy, greater environmental performance, and the preservation of resources and ecosystems.
The members of Soltena are
- Companies offering solutions to the ecological transition within various sectors (biodiversity, water, air quality, sites and soils, waste and the circular economy, energy efficiency and renewable energies, mobility, etc.).
- Local authorities and economic actors taking an environmental approach, seeking solutions and methodological support to
improve their environmental performance and develop their eco-innovation and ecological transition strategies. - Research and training bodies.
- Partners who share our ambitions and build cross-membership: development agencies, regional observatories, clusters and
competitiveness hubs.
Members of Solten commit to
- Participate in the life of the organisation
- Contribute towards the dynamics between members
- Engage in reciprocal communication
- Genuinely commit to an environmental approach