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Bio-based and biodegradable plastics. Sustainable fertilizer produced from air and water. Predictive farming at the plot level. Parking lots transformed into solar power plants: this isn't science fiction, but the actual ambition of the six startups in this new Climate & Biodiversity cohort, co-supported by 21st by CentraleSupélec and AgroParisTech.
Supported jointly by 21st by CentraleSupélec and AgroParisTech, this cohort joined the program on Thursday, September 17, during an onboarding day held specifically at the Ferme de Grignon.
An onboarding day to identify needs and get to know one another
As the first step of the program, this onboarding day was designed to allow entrepreneurs to meet, express their specific needs (R&D, GTM, recruitment, etc.), discover the ecosystem and resources available to them, and connect with the key partners of the Climate & Biodiversity vertical.
The teams from 21st by CentraleSupélec and AgroParisTech presented the acceleration program, the network of mentors and partner VCs, potential scientific collaborations, and the roadmap for the coming months. Startups notably benefit from access to over 40 research laboratories covering key themes such as energy, life sciences, food, agriculture, biodiversity, climate, forestry, and soil.
Partners engaged from the very start
Several partners of the vertical were on hand to present the resources available throughout the program:
- Thomas Beaugendre (Demea) led a masterclass on fundraising;
- Pauline Bouvier (Bloomr) presented the funding mechanisms accessible at every stage of a deeptech startup's lifecycle;
- Manon Marioli and Martin Hirschauer (BPRI) detailed the mechanisms, expertise, and resources available to the startups.
Discover these six startups driving major transitions
The 2026 Climate & Biodiversity cohort brings together six startups addressing the challenges of food, agricultural, environmental, and energy transitions.
Producing bio-based plastics with Another World Bioscience

Another World Bioscience develops genetically modified microalgae capable of capturing CO₂. Using a biofoundry that combines synthetic biology, automation, and artificial intelligence, the startup produces biodegradable bioplastics (PHA), primarily for the packaging market.
Founders: Victor Kreis (CEO), Stéphane Lemaire (CTO) and Pierre Crozet (CSO).
Valorizing CO₂ from anaerobic digesters with Epiqor
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Epiqor (formerly Cycles) is developing technology that converts underutilized CO₂ from anaerobic digesters into green methane. By using industrial waste to produce hydrogen, the company significantly increases the output and profitability of these facilities.
Founders: Victor Mora (CEO) and Edmond Baratte (CTO).
Transforming agricultural fertilizers with Synanthra
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Synanthra is developing a bioelectrochemical technology that produces nitrogen fertilizer locally using air, water, and renewable electricity. Its goal: to replace fossil-fuel-based fertilizers produced via the Haber-Bosch process.
Founders: Cameron Fyfe (CEO) and Héloïse Coutelier (CSO).
Modeling plant life to better predict crop yields with Cybeletech
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Cybeletech mathematically models plant life to predict, optimize, and manage every crop, plot by plot, from sowing to harvest.
Founders: Christophe Shaw (CEO) and Nicolas Steinmetz (CTO).
Reinventing solar carports with Suun
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SUUN addresses a growing need: the APER law mandates the solarization of tens of thousands of parking lots in France by 2028, yet the current solar carport market still relies on heavy, expensive, and slow-to-install metal structures. The startup is reinventing the solar carport as a true piece of infrastructure, using ultra-high-performance fiber-reinforced concrete (UHPFRC) pillars and patented tension cables that allow for spans of up to 30 meters. The result: fewer foundations, construction times cut in half, a structure that is more affordable than traditional steel framing, and up to a 70% reduction in carbon footprint.
Founders: Clément Houllier (CEO)
Supporting the solar transition for homeowners with Zilo Energie
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Zilo Energie offers a solar subscription based on a service-level agreement with a performance guarantee. The startup provides local solar kWh at a guaranteed price and optimizes its customers' self-consumption.
Founders: Philippine Roy, Chloé Roubach, and Florian Guinet (COO).
Visit to the AgroParisTech experimental farm
A highlight of the day, the visit to the AgroParisTech experimental farm gave the entrepreneurs a chance to explore the site and the experiments being conducted there, right in the field. Guided by farm director Quentin Bulcke, they were able to engage with the teams and gain a better understanding of the daily realities of agricultural operations. The visit also provided an opportunity to discover the Farm'InnLab, a collaborative space dedicated to agricultural challenges. These interactions allowed the start-ups to identify initial opportunities for collaboration and real-world testing.
We would like to thank Quentin Bulcke for leading this tour, as well as Tristan Brancaz, head of the Farm'InnLab, for his hospitality, and Grégoire Burgé, Deputy Director of Research in charge of innovation at AgroParisTech.




Support at the intersection of science and business
By combining scientific and technical excellence, field experimentation, and business acceleration, the partnership between 21st by CentraleSupélec and AgroParisTech offers the cohort's start-ups a unique framework to develop and deploy their solutions.
Welcome to the six startups joining the Climate & Biodiversity 2026 cohort!






