What Enosis does

Enosis Energie is a French deep-tech company founded in 2014 and headquartered in Toulouse that develops biological methanation systems for the renewable gas and waste-to-energy markets. Its core technology uses consortia of microorganisms to convert CO2 (and CO/H2 inputs) into synthetic methane, producing what the company describes as flexible, impurity-tolerant, energy-efficient cultures that are non-pathogenic and not dependent on rare natural resources. The technology was developed over five years with R&D partners INSA Lyon, DEEP, and TBI; Enosis co-owns the underlying IP and holds exclusive exploitation rights for its applications.

The company sells integrated biomethanation systems (equipment plus biological cultures) and provides engineering, commissioning, training, and after-sales services. Its commercial portfolio includes named projects such as Denobio (first industrial-scale biomethanation installation coupled with agricultural methanisation and network injection), Bimotep (mobile testing unit), Demetha (pre-industrial prototype in Occitanie), Plainenergie (European-first territorial waste-to-gas), Woodhy (green hydrogen via biomass gasification), and Minerve (Power-to-Gas demonstrator). Enosis positions its systems as bridges between electrical and gas networks, enabling CO2 valorization, syngas treatment, and electricity storage.

Enosis targets three B2B customer archetypes — renewable energy producers, operators of waste recovery sites, and constructors of methanisation or pyrogasification plants — through direct enterprise sales. The company is venture-backed, with KIC InnoEnergy investing in 2018 and UI Investissement, Industrya, and Banque des Territoires joining in 2022 (EUR 3.2M round). The team comprises roughly 11 engineers and doctors, including founders Vincent Guerré (CEO) and Stéphane Palmade (CTO), with dedicated business development leadership for Southern Europe/North America, Scandinavia, and (most recently) the wastewater vertical via the November 2025 Stereau partnership.

Name

Enosis

Legal name

Enosis Energie

Website

https://enosis-energies.com

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Biomethanation Equipment

NAICS

Industrial Gas Manufacturing (325120), Industrial Gas Manufacturing (32512)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Synthetic Methane (Methanation) & E-Gas Production (EUAJAJAI)

akta.pro secondary industries

Biogas/RNG Plant Development, EPC & Project Delivery (EUAAAEAH), On-Site Gas Generation Systems (IMAEACAJ), Anaerobic Digestion (Wet/Dry AD) & Biogas Production (EUAIAEAD)

Keywords

• Biological methanation
• CO2 recycling systems
• Renewable gas production
• Power-to-gas
• Biogas enrichment

Headquarters

HQ city

Toulouse

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Biomethanation Systems: Sale and integration of biomethanation systems (equipment and biological cultures) that enable recycling of CO2 and waste into sustainable gases. Systems are integrated into existing methanisation or pyrogasification plants.
2. Engineering Services: Project management assistance and technical services including commissioning, operation support, customer training, and after-sales service for installed units.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Enosis designs and supplies biological methanation systems (equipment and biological cultures) that recycle CO2 and non-reusable waste into sustainable gases such as synthetic methane and hydrogen. The systems are integrated into existing methanisation and pyrogasification plants, and act as Power-to-Gas bridges between electrical and gas networks, enabling electricity storage and biogas enrichment for renewable energy producers, waste recovery operators, and plant constructors.

Product overview

Enosis offers a unified product portfolio centered on biological methanation technology for producing renewable gases. The core offering consists of systems that convert CO2 and waste into sustainable gases (synthetic methane and hydrogen). These systems serve as bridges between electrical and gas networks (Power-to-Gas architecture), enabling electricity storage. The portfolio includes several named projects: Denobio (first industrial-scale biomethanation with network injection), Bimotep (mobile testing unit), Demetha (pre-industrial prototype), and Plainenergie (territorial waste-to-gas initiative). The technology uses consortiums of microorganisms for flexible, robust, and efficient gas processing.

Differentiator

Problem solved

Functional benefit

Products and services

• Biological Methanation Systems Systems combining equipment and biological cultures (microorganism consortia) that recycle CO2 and waste into sustainable gases (synthetic methane and hydrogen). Designed for integration into methanisation or pyrogasification plants. Flexible (handles various gases), robust (resistant to impurities), and energy-efficient. Intended for renewable energy producers, waste recovery operators, and plant constructors.
• Power-to-Gas Systems Bridge systems between electrical and gas networks that enable storage of excess electricity by converting it into gas, complementing battery storage solutions. Use a biomethanation architecture to convert electrical surplus into renewable methane. Intended for energy infrastructure operators.
• Engineering and Project Management Services Technical services including project management assistance, commissioning of biological methanation units, operation support, customer training, and after-sales service for installed systems. Targeted at industrial clients purchasing Enosis biomethanation systems.
• Bimotep Mobile Biomethanation Unit A mobile biomethanation unit used for on-site testing of CO2, biogas, and syngas feeds at client production sites. Provides trial-scale validation of the biomethanation process before full-scale industrial deployment. Available to industrial clients evaluating the technology.

Quantifiable outcome

• 3 tonnes of CO2 captured per tonne of synthetic methane produced
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and flagship.

• INSA LyoncoreTechnology or IntegrationResearch hosting partner for the pressurized biomethanation pilot reactor unit developed with DEEP and TBI. Hosts R&D activities and provides academic infrastructure.
• DEEP (partenaire R&D)coreTechnology or IntegrationR&D partner involved in development of pressurized biomethanation pilot reactor technology.
• TBI (partenaire R&D)coreTechnology or IntegrationR&D partner involved in development of pressurized biomethanation pilot reactor technology.
• StereauflagshipStrategic or Co-development PartnerStrategic partnership announced in November 2025 for deploying CO2-to-e-methane conversion solutions at scale. Combines Stereau's water treatment expertise with Enosis's biomethanation technology for renewable gas production at wastewater treatment facilities.

Scale indicators3 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Electrochaea: Originally a Munich-based biotech pioneering biological methanation (comparable technology to Enosis); now part of Baker Hughes/INFRA. Direct competitor in biological methanation and Power-to-Gas, targeting similar waste-to-methane and CO2-to-methane use cases at industrial scale.
• Etogas: German Power-to-Gas pioneer (now part of Thyssenkrupp Uhde) operating one of Europe's largest commercial CO2 methanation plants. Direct peer offering methanation systems that integrate with renewable power and biogas for synthetic natural gas production, comparable to Enosis's Power-to-Gas systems.
• Sunfire: Germany-based company producing e-fuels and synthetic gases via Power-to-Liquids and Power-to-Gas technologies, including e-methane and hydrogen. Competes with Enosis in the CO2-to-synthetic-methane market and shares the same industrial decarbonization customer base.

Broad incumbents

• Topsoe: Danish process technology company offering catalytic e-methane solutions (SOEC electrolysis plus methanation), serving large-scale industrial gas producers and utilities. A broader incumbent in synthetic fuels that overlaps with Enosis in the CO2-to-methane value chain but operates at much larger scale and via catalytic rather than biological routes.
• Hitachi Zosen Inova (HZI): Swiss-Japanese EPC company providing large-scale biogas upgrading, biomethanation, and Power-to-Gas plants (e.g., the Kompogas and methanation references). A broad incumbent in industrial-scale waste-to-gas and renewable gas infrastructure, with significant overlap in the customer segment Enosis serves.
• Storengy (Engie subsidiary): Subsidiary of Engie specializing in underground gas storage and renewable gas production (including methanation pilots and biomethane projects). Comparable as a buyer, partner, or potential competitor for biological methanation technology deployment across French and European gas infrastructure.
• GRDF: France's main natural gas distribution operator, an infrastructure incumbent that integrates renewable and synthetic gases (including biomethane) into its distribution network. Comparable as the critical downstream network into which Enosis's e-methane is injected via projects like Denobio and Plainenergie.

Emerging players

• Carbios: French biotech company developing enzymatic recycling of PET plastics and biorefinery processes; not a direct methanation peer but a fellow French industrial biotech using proprietary biological processes for sustainability applications. Comparable as a French biotech venturing into industrial-scale biology-based decarbonization.

Regional players

• Fermentalg: French industrial biotech developing microalgae-based solutions for nutrition, health, and green chemistry. Comparable as a French biotech using proprietary microorganism-based processes, with regional overlap in Toulouse-area industrial biotech ecosystem.

Others

• Haffners / Pentair Biogas Solutions: Provider of biogas upgrading membranes and CO2 separation equipment for biomethane plants; ecosystem supplier of one of the separation steps adjacent to biological methanation. Comparable as an enabler of renewable gas value chains relevant to Enosis's methanisation and pyrogasification customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/enosis_energies
• LinkedInfr.linkedin.com/company/enosis-energies

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Funding overview

Funding rounds1 record

Investors3 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Enosis