Overview
CarbonWorks is a Vichy-based deeptech startup developing biological carbon capture technology using microalgae to absorb CO2 from industrial flue gases, converting captured carbon into valuable biomass products. Founded in 2019, the company’s approach — using living organisms as carbon capture agents — is fundamentally different from chemical carbon capture and storage (CCS) systems that compress CO2 and inject it underground, and from direct air capture (DAC) systems that use chemical sorbents to extract CO2 from ambient air. Microalgae-based capture uses photosynthesis to convert CO2 and light into biomass, simultaneously capturing carbon and producing feedstocks for agriculture (fertilizers, animal feed supplements) and industrial applications.
The biological carbon capture approach has several potential advantages over chemical CCS: microalgae grow rapidly (doubling biomass in 24–48 hours under optimal conditions), produce valuable biomass co-products that offset operating costs, and operate at the moderate temperatures and pressures of industrial flue gases without the energy-intensive compression required for geological CCS. The economic case for CarbonWorks’ approach depends on the combined value of carbon credits and biomass products exceeding the operational costs of growing and harvesting microalgae at industrial scale — an equation that France 2030’s carbon pricing framework and agricultural policy are progressively improving.
France 2030 Funding & Projects
CarbonWorks participates in France 2030’s industrial decarbonization axis through ADEME’s carbon capture and circular economy programs. The company has received Bpifrance i-Nov competition funding for cleantech innovation and has participated in French regional bioeconomy programs in Auvergne-Rhône-Alpes. France 2030’s “50 most carbon-intensive sites” program — which targets France’s highest-emitting industrial facilities for accelerated decarbonization — creates potential pilot deployment opportunities for CarbonWorks at cement plants, glass works, and chemical facilities where flue gas CO2 concentrations are sufficiently high for efficient algae capture.
The company also benefits from INRAE’s microalgae research programs — particularly at INRAE’s Montpellier research center for microalgae biotechnology — which France 2030 funds as part of the bioeconomy research axis. These academic partnerships accelerate strain development and process optimization without requiring CarbonWorks to maintain full-scale academic research programs in-house.
Strategic Position
CarbonWorks operates at the intersection of carbon capture, bioeconomy, and industrial decarbonization — three France 2030 priority areas where funding flows are substantial but commercial technologies remain early-stage. The biological carbon capture market is nascent: most commercial carbon capture implementations use chemical amine scrubbing or geological storage, not biological conversion. CarbonWorks therefore competes primarily against incumbency (existing industrial processes without carbon capture) and against chemical CCS for pilot program funding, rather than against directly comparable commercial products.
The competitive advantage of biological capture versus chemical CCS is the biomass co-product value: rather than a pure cost center (CCS requires energy to compress and inject CO2), biological capture produces marketable products that partially offset operational costs. As EU carbon prices under the Emissions Trading System rise — from approximately €60/tonne in 2023 toward projected €100+/tonne by 2030 — the economics of carbon capture improve substantially for all approaches including biological.
Key Technology & Innovation
CarbonWorks’ core technology is its microalgae cultivation system designed for industrial CO2 capture: photobioreactors that maintain optimal algae growth conditions while handling the variable CO2 concentrations, temperatures, and contaminant profiles of industrial flue gases. These systems must be robust enough for 24/7 industrial operation — a much more demanding environment than research-scale cultivation — while achieving the biomass productivity rates needed for commercial carbon capture economics.
The company’s strain selection work — identifying and optimizing microalgae strains that combine high CO2 tolerance, rapid growth, and valuable biomass composition — is proprietary IP that provides competitive differentiation. Strains optimized specifically for the flue gas conditions of specific industrial sectors (cement, glass, chemical) represent valuable application-specific IP.
Leadership
CarbonWorks was founded with a team combining expertise in microalgae biology and industrial process engineering — a combination rare in the deeptech startup ecosystem and essential for developing a technology that must work in industrial environments rather than laboratory conditions. The Vichy location connects CarbonWorks to the Auvergne region’s industrial and agricultural networks.
Competitive Landscape
In biological carbon capture, CarbonWorks competes with Brilliant Planet (UK/Mauritania, outdoor pond microalgae for direct air capture), Hypercapture (Netherlands), and various academic spin-offs pursuing similar approaches. In industrial carbon capture broadly, the much larger chemical CCS sector (Air Products, Shell Cansolv, MHI) represents the incumbent technology benchmark. French competitors include Carbon Capture Suez (chemical absorption) and start-ups pursuing geological storage.
Investor Perspective
CarbonWorks is an early-stage company requiring proof of commercial-scale unit economics before institutional investment at scale becomes available. France 2030’s decarbonization funding provides the non-dilutive capital for pilot demonstrations at industrial sites that build the commercial evidence base. The key risk is biological process scale-up: microalgae cultivation that works at laboratory scale frequently encounters productivity, contamination, or stability challenges when scaled to industrial volumes.
For impact investors and carbon technology specialists, CarbonWorks represents a biologically differentiated carbon capture approach within France’s well-supported industrial decarbonization ecosystem. The combination of France 2030 policy support, rising EU carbon prices, and biomass co-product value creates a progressively improving economic environment for biological carbon capture.