Sublime Energie

What Sublime Energie does

Sublime Energie is a French deeptech company, spun out of Mines Paris PSL in July 2019, that has developed a proprietary biogas liquefaction technology adapted to low flow rates. Its core innovation enables on-farm anaerobic digestion by small and remote farms — a segment the company estimates holds over 90% of France's biomass but is excluded from existing methanisation models because cogeneration is uneconomical at small scale and grid injection requires costly purification. The technology collects biogas from farm digesters, liquefies it on-site to drastically reduce transport volume, and concentrates the expensive purification and conditioning steps at a shared hub. The output is bioLNG (an 85% lifecycle GHG-reduction fuel for heavy transport and agricultural machinery, with over 1,000 km range) and bioCO2 (biogenic CO2 for greenhouse enrichment, cryogenic weeding, refrigeration, and green chemistry).

The business is currently demonstrator-stage rather than commercial. Sublime Energie has progressed through a clear technology maturity roadmap: ALPHA proof-of-concept (2020), BRAVO laboratory demonstrator (2022), CHARLIE field demonstrator inaugurated in April 2026 at partner farm GAZEA in Brittany (described as the world's first on-farm biogas liquefaction), with DELTA, the first commercial-scale deployment, planned for 2027-2028 to serve ~12 farms producing 3,000 tons of bioLNG and 5,500 tons of bioCO2 annually. Revenue is expected to come from sales of bioLNG to heavy trucking and agricultural machinery operators, and from sales of bioCO2 to industrial off-takers, under a hub-and-spoke distribution model with direct enterprise sales.

The company operates as a 'société à mission' (mission-driven company), the first in the biogas sector to obtain this French certification (2022, renewed 2024/2025), and was selected as one of 40 winners (from 959 candidates) of the EIC Accelerator 2025. It has raised approximately €12.5 million in equity (€1M seed in 2021, €11.5M Series A in 2024 led by Crédit Mutuel Impact) plus EIC non-dilutive funding, and holds an exclusive license to the foundational Mines Paris PSL patent plus a second in-house patent filed in 2021.

Name

Sublime Energie

Legal name

SUBLIME Energie

Website

https://sublime-energie.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Sublime Energie is a French deeptech spin-off of Mines Paris PSL that has developed a proprietary biogas liquefaction technology enabling on-farm anaerobic digestion by small and remote farms, producing bioLNG fuel and bioCO2 for heavy transport, agricultural machinery, and industrial buyers.

Ownership category

akta.pro rank

Product category

Biogas Liquefaction & Renewable Gas Technology

NAICS

Petroleum and Coal Products Manufacturing (3241)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Biogas/RNG Plant Development, EPC & Project Delivery (EUAAAEAH)

akta.pro secondary industries

Anaerobic Digestion (Wet/Dry AD) & Biogas Production (EUAIAEAD), Organics-to-Energy & CHP from Biogas (On-site Power/Heat) (EUAIAEAG), CO₂ Utilization from Bioenergy (CCU: Fuels, Chemicals, Building Materials) (EUAAALAG), Anaerobic Digestion (AD) & Biogas/RNG Production (Organics Feedstocks) (BPALAEAC)

Keywords

• Biogas liquefaction technology
• On-farm anaerobic digestion
• BioLNG production
• Biomethane processing
• Renewable natural gas

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. BioLNG Sales: Production and sale of bioLNG (bio liquefied natural gas) as a low-carbon fuel for heavy transport, trucking, and agricultural machinery. BioLNG reduces emissions by 85% compared to fossil fuels and offers over 1,000 km range with rapid refueling.
2. BioCO2 Sales: Production and sale of bioCO2 (biogenic carbon dioxide) for industrial applications including greenhouse crop growth, cryogenic weeding, refrigeration, and green chemistry.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Sublime Energie develops and deploys a proprietary biogas liquefaction technology that enables small-scale on-farm anaerobic digestion. The technology collects, transports, purifies, and conditions biogas from farm digesters, reducing volume drastically to lower transport costs, with centralized hubs pooling purification operations. The outputs are bioLNG, a low-carbon fuel reducing emissions by 85% versus fossil fuels for heavy transport, and bioCO2, a biogenic carbon dioxide for industrial applications.

Product overview

SUBLIME Energie is a deeptech company offering biogas liquefaction technology that enables on-farm anaerobic digestion for small and remote farms. The core technology transforms biogas into bioLNG (low-carbon fuel for heavy machinery and trucking) and bioCO2 (biogenic carbon dioxide for industrial uses). The company operates a phased demonstrator roadmap: ALPHA POC (2020) proved concept viability, BRAVO laboratory demonstrator (2022) validated full-scale performance, CHARLIE field demonstrator (2026) achieved world's first on-farm biogas liquefaction, and DELTA commercial demonstrator (2027-2028) will serve approximately a dozen farms producing 3,000 tons bioLNG and 5,500 tons bioCO2 annually. The technology pools purification costs across multiple farms via centralized hubs, making small-scale methanisation profitable.

Differentiator

Problem solved

Functional benefit

Products and services

• Biogas Liquefaction Technology Proprietary, one-of-a-kind biogas liquefaction technology adapted to low flow rates, enabling small-scale on-farm anaerobic digestion. Collects, transports, liquefies, and conditions biogas from farm digesters using a hub-and-spoke model that pools purification costs across multiple farms, producing bioLNG and bioCO2 for sale to industrial and transport customers.
• bioLNG (bioGNL)
• bioCO2

Quantifiable outcome

• 85% GHG emissions reduction compared to fossil fuels over complete lifecycle
• +5 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• GAZEA (Agricultural Partner)coreStrategic or Co-development Partner · 1 January 2026Partner farm in Brittany (Plélo, Côtes-d'Armor) hosting the CHARLIE demonstrator. Provides real biogas from existing anaerobic digester for technology testing in integrated operational environment. Farm managed by Servane Lecollinet, who is also Vice-President of SUBLIME Energie's Mission Committee.
• Impaccct (Audit Cabinet)minorImplementation/ SI/ Consulting Partner · 1 January 2025External auditor represented by Aurélie Caudal and Hélène Roussin-Le Texier that validated SUBLIME Energie's renewed 'Société à Mission' certification in 2025.
• Mines Paris – PSL (Centre Énergie Environnement Procédés / Centre Efficacité énergétique des Systèmes)coreTechnology or Integration · 1 January 2020R&D partnership with Mines Paris – PSL granting exclusive license to exploit biogas liquefaction patent filed by Mines Paris. SUBLIME Energie is a spin-off from Mines Paris PSL. Partnership provides ongoing research collaboration and technology validation.
• ARMINEScoreTechnology or Integration · 1 January 2020Association de recherche contractuelle (contract research association) that signed exclusive exploitation convention with SUBLIME Energie for biogas liquefaction technology developed at Mines ParisTech CES center.

Scale indicators9 records

Recent moves11 records

Expansion highlights6 records

Direct peers

• Waga Energy: French deeptech that converts biogas (notably from landfill gas) into renewable natural gas (RNG) using proprietary upgrading technology. Waga Energy is the closest comparable in business model — a technology-led, decentralized biogas-to-RNG platform — though it focuses on landfill gas and grid injection rather than on-farm liquefaction and bioLNG.
• Evergaz: French independent developer and operator of anaerobic digestion / biomethane plants. Evergaz is comparable as a French-based biogas plant developer targeting agricultural and waste feedstocks, though it operates at larger project scale and produces grid-injected biomethane rather than bioLNG.
• Naskeo: French biomethane/RNG producer specializing in anaerobic digestion of agricultural and territorial waste. Naskeo is comparable as a French AD-to-biomethane operator serving similar agricultural customers and feedstock base.
• Arol Energy: French independent biomethane producer operating AD plants across France. Arol Energy is comparable as a French AD/RNG operator with similar agricultural feedstock exposure, though it focuses on grid-injected biomethane rather than liquefied bioLNG.
• Verbio: German bioenergy company producing biodiesel, bioethanol, and biomethane (incl. bioLNG/bioCNG) from agricultural feedstock. Verbio is comparable as a European bioLNG/bioCNG producer at commercial scale with a similar agricultural-of Europe footprint, providing a useful scaled benchmark for SUBLIME Energie's downstream product economics.

Broad incumbents

• Air Liquide: Global industrial gas major with growing presence in bioCO2 and biogas/biomethane. Air Liquide is comparable as a large industrial gas incumbent with cryogenic technology expertise and downstream bioCO2 offtake channels that overlap with SUBLIME Energie's product mix and customer base.
• ENGIE: French multinational utility with substantial biomethane and renewable gas investments, including via its subsidiary Storengy (also a SUBLIME Energie investor). ENGIE is comparable as the dominant incumbent in French biomethane with the resources to compete with or partner around distributed AD-to-RNG models.
• Storengy: ENGIE subsidiary and one of Europe's largest natural gas storage operators with a growing biomethane business. Storengy is comparable as both an investor in SUBLIME Energie and a potential competitor operating AD/biomethane assets at larger scale, with overlapping agricultural feedstock and offtake relationships in France.
• TotalEnergies: French integrated energy major with a growing biomethane and bioLNG footprint (including TotalEnergies Biogas Holland). TotalEnergies is comparable as a deep-pocketed incumbent with European bioLNG offtake ambitions and existing AD/biogas assets, representing both a potential competitor and a credible exit/strategic partner.
• Neste: Finnish global leader in renewable fuels (renewable diesel, SAF) with a growing bioLNG and renewable chemicals portfolio. Neste is comparable as a large-scale European producer of renewable transport fuels including bioLNG, providing a benchmark for downstream bioLNG market dynamics and offtake economics.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sublime-energie

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds5 records

Investors4 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 Sublime Energie