Demeter
Demeter Partners is a private equity and venture capital firm based in Paris, France, founded in 2005. It focuses on investments that support the ecological transition, targeting companies across various stages of development, including seed, start-up, early-stage, and growth. The firm primarily invests in sectors such as eco-industries, eco-energies, green technology, and alternative energy resources. Specific areas of interest include water, air, and waste treatment, energy efficiency, and renewable energies, as well as infrastructure projects related to sustainable energy. Demeter typically invests between €0.5 million and €30 million in small to medium-sized enterprises and prefers to take minority stakes while seeking board representation in its portfolio companies. While the firm predominantly operates in Europe, particularly in France, it also explores opportunities in North America and other regions. Demeter is recognized as a significant player in the European private equity landscape, particularly following its merger with Emertec Gestion in 2016, which enhanced its focus on the energy transition and environmental sectors.
CarbonWorks specializes in the development of algae photobioreactors that utilize microalgae to capture and convert carbon dioxide. The company's technology industrializes microalgal photosynthesis, enabling the transformation of carbon emissions from various manufacturers into biomass. This biomass can be used in agricultural biocontrol products, as well as in human and animal food markets. By focusing on the large-scale production of safe bioproducts, CarbonWorks aims to help industries reduce their carbon footprints and promote sustainability.
BeFC Bioenzymatic Fuel Cells is a company based in Grenoble, France, founded in 2020, that specializes in developing eco-friendly energy solutions. The company focuses on creating paper-based, ultra-thin, flexible, and miniature bioenzymatic fuel cell systems designed for sustainable energy generation. These innovative devices provide a safer alternative to traditional button or coin cell batteries, which are often difficult to recycle and environmentally harmful. BeFC's technology aims to address the growing need for sustainable power sources in disposable medical and wearable devices, facilitating the advancement of single-use applications while minimizing ecological impact. Additionally, its fuel cells present new opportunities for low-power applications in health monitoring, logistics, and the Internet of Things (IoT).
Proviridis is a provider of alternative technologies and fuels for vehicles. The company natural gas along with fast intelligent electric recharges and hydrogen stations for range extenders in order to provide an operational response to the economic and environmental requirements of transport professionals.
Ergosup is a company based in Malataverne, France, that specializes in the development of decentralized hydrogen-energy production systems. The firm has created an innovative process for producing high-pressure hydrogen on-site, which facilitates the refueling of hydrogen fuel vehicles. Ergosup provides generators that store and convert electricity into hydrogen under pressure, enabling the co-generation of electric power for hydrogen service stations and various industrial applications. This technology allows clients to achieve zero-emission solutions for mobility applications, contributing to a more sustainable energy future.
Private Equity Round in 2017
COGEBIO is a company that designs, manufactures and installs energy recovery units for biomass (wood chips, agricultural by-products, etc.) for the production of heat and / or electricity.
Private Equity Round in 2017
H2air is an independent French wind developer and operator.
Ergosup is a company based in Malataverne, France, that specializes in the development of decentralized hydrogen-energy production systems. The firm has created an innovative process for producing high-pressure hydrogen on-site, which facilitates the refueling of hydrogen fuel vehicles. Ergosup provides generators that store and convert electricity into hydrogen under pressure, enabling the co-generation of electric power for hydrogen service stations and various industrial applications. This technology allows clients to achieve zero-emission solutions for mobility applications, contributing to a more sustainable energy future.
SolFocus's mission is to enable solar energy generation at a Levelized Cost of Energy (LCOE) competitive with traditional fossil fuel sources. To achieve this goal, SolFocus has developed leading concentrator photovoltaic (CPV) technology which combines high-efficiency solar cells (approaching 40%) and advanced optics to provide solar energy solutions which are scalable, dependable and capable of delivering on the promise of clean, low-cost, renewable energy.
Methaneo focuses on the development of collective biogas projects that utilize biomass derived from agricultural and agri-food sources. The company's approach centers on anaerobic digestion, a process that ferments organic matter to generate energy in the form of biogas, which is predominantly composed of methane. Unlike traditional anaerobic digestion methods that are often limited to individual farms, Methaneo emphasizes the importance of collaboration among multiple local partners, including biomass suppliers, industrial entities, farmers, and communities. This collective model fosters a more integrated and efficient production of renewable energy, while also contributing to local economies and sustainable waste management practices.
JMB ENERGY is a producer of renewable electricity, which positions its activity in 2 key areas of renewable energy: the wind and solar photovoltaics. Ultimately, its development will enable it to expand its reach to areas of biomass, and the hydraulics.
Private Equity Round in 2008
SulfurCell is a German developer and manufacturer of thin-film, electricity-generating solar modules. Sulfurcell's thin-film modules have demonstrated some of the highest energy conversion efficiencies for thin-film PV. Sulfurcell's product also offers scalability — a crucial component for high-volume supply — bringing the solar industry one step closer to mainstream applications.
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