Top 25 Oil and Gas Startup Investors in France (September 2026)

Portfolio highlights

• GravitHy — We produce low-carbon iron from hydrogen to offer a new value chain and accelerate the decarbonization of the steel industry.
• ClimeFi — ClimeFi partners with leading companies to build and manage high-quality, de-risked carbon removal portfolios built for long-term impact.
• ExerGo Sàrl — We provide sustainable, affordable, and efficient heating and cooling services for cities, utilities, and private companies. Learn more.

Portfolio highlights

• Melvan — Melvan develops, finances, builds and operates solar and wind installations, combined, where relevant, with storage facilities.
• AI-Stroke — Developer of an artificial intelligence-powered mobile application designed to assist in pre-CT/MRI stroke diagnostics. The company offers a platform that guides first responders and patients through relevant exercises for stroke detection, captures and analyzes video data, and leverages the world's largest proprietary stroke patientvideo dataset (20,000 videos and 6 million images), enabling patients with a diagnosis and outcomes by reducing delays in treatment for stroke, increasing the number of treatment procedures, and recuding the rehab costs.
• MSInsight — Explore how our cutting-edge genomic analysis uncovers actionable insights into microsatellite instability (MSI), driving targeted, personalized cancer treatments.

Portfolio highlights

• Capitolis — Capitolis is the technology company helping to create safer and more vibrant financial markets by unlocking capital constraints and enabling greater access to more diversified capital and investment opportunities. Rooted in advanced technology and deep financial expertise, Capitolis powers groundbreaking financial solutions that drive growth forglobal and regional banks – and institutional investors alike.
• Proxymity — Announcing our Newest Partnership
• Encompass — Award-winning EC360 CDI platform and EC solutions for fast, flawless, and frictionless corporate client identity validation and verification.

Portfolio highlights

• Mantle8 — Using bottom-up exploration and decades of geology experience, we are on a mission to deliver natural hydrogen to the world.
• Geolinks — We are a deep tech start up in Geosciences. Our mission is to develop sustainable geophysical monitoring solutions using ambient-noise based technology.

Portfolio highlights

• Geolinks — We are a deep tech start up in Geosciences. Our mission is to develop sustainable geophysical monitoring solutions using ambient-noise based technology.

Portfolio highlights

• CuspAI — CuspAI is a revolutionary AI startup that is developing a platform for next-generation materials to address global sustainability and renewable energy concerns. CuspAI uses cutting-edge generative AI, deep learning, and molecular simulation to accelerate the material design process. Their platform works similarly to a search engine for materials,allowing users to request certain properties for new materials on demand.
• Kayrros — Kayrros is the leading advanced data analytics company that helps traders, investors, operators and governments make better decisions.
• Venterra — We engineer, build and support the operation of multiple offshore wind farms through our portfolio of specialist operators providing reliable, high-quality services to the offshore wind industry.

Portfolio highlights

• Faradae — Faradae originates, develops, owns, and operates solar generation, powering hospitality, health care, and office buildings.
• CHARBONE — CHARBONE Hydrogen operates as a green hydrogen company.

Portfolio highlights

• Flexvelop — Flexvelop is a fintech transforming the way businesses finance essential business equipment. "Flexing" is an innovative combination of leasing, renting and bank-financing terms offering a kind of Hardware-as-a-Service solution. Embedded as a payment solution, partnered manufacturers, vendors and brands are actively offering"Flexing" to their b2b customers for financing new business equipment right at the point of sale and in online shops. Flexvelop is operating in the verticals of office-it, hospitality equipment, medical devices or fitness equipment throughout Germany. Well-known manufacturers like Lenovo, WMF, or LaMarzocco are using Flexing openly or as a white-label solution. SMB customers flex equipment to grow flexibly without the usual investment risk – saving liquidity, tax and a clean balance sheet. Flexvelop is using its patented in-house financing technology, promoting a more sustainable circular economy in the same time. Flexing becomes the new standard for business equipment procurement for SMBs throughout Germany, Europe and beyond.
• Kainova Therapeutics — Domain Therapeutics is a biopharmaceutical company focused on GPCR in immuno-oncology. Discover more than you think on our innovative cancer treatments tackling GPCR mediated-immunosuppression
• Vertero — Axial Therapeutics is a biotechnology company fundamentally changing the treatment of neurological diseases and disorders by harnessing groundbreaking science in the microbiome-gut-brain axis.

Portfolio highlights

• ENGO Eyewear — engo3 is a next generation heads up display built for endurance athletes. Instant, frictionless, hands free access to performance metrics with long battery life and an ultra lightweight form factor. Unlock your data, and experience an entirely new way to train and compete
• Elixir Aircraft — Discover Elixir Aircraft, manufacturer of 4th generation light aircraft focusing on safety, savings, versatility, and sustainability in general aviation.
• BrightHeart — BrightHeart develops an AI-based platform for fetal ultrasound analysis to improve detection of congenital heart defects.

Portfolio highlights

• Calicéo — Calicéo operates as a family group of aquatic fitness and beauty-massage spaces.
• K-Motors — One device replacing contactors, fuses, current sensors and precharge lines.
• Voltalia — The Investor Relations website contains information about Voltalia's business for stockholders, potential investors, and financial analysts.

Portfolio highlights

• Anrok — Anrok automates sales tax compliance across your financial stack, so you can grow your SaaS business in any market.
• OpenX — OpenX has the largest independent ad exchange network for publishers and demand partners, while maintaining the highest quality marketplace standards. Learn more.
• StorSimple — Learn how to migrate a StorSimple 8100 or 8600 appliance to Azure File Sync.

Portfolio highlights

• ITSCAPE — ITSCAPE provides a new generation of low-cost, high-quality, easy-to-use cloud-based system management products.Companies are losing $26.5B every year due to outages and unplanned downtime. A major contributor to these outages is the difficulty managing the rapidly increasing complexity of IT environments created by virtualization and cloudtechnologies. Business applications and processes are more complex to manage as they are no longer contained to a few servers in a datacenter, but spread out across many physical and virtual servers inside and outside a company. This creates a lack of visibility of where applications reside and what servers or components they are dependent on. IT managers often have no idea of which servers, databases, connection, and more support their companies business-critical services. Simple changes to a single server can cause major outages. ITSCAPE provides a new, cloud-based, affordable, and easy way to perform application discovery, application dependency mapping map, and change tracking in an IT environment –including elements that are physical, virtual, or in the cloud. With ITSCAPE, IT managers get an accurate and comprehensive understanding of all of the servers, applications, databases, and communications in their datacenter, see the relationships between these IT components, and get clear visibility into the IT systems that support their company’s business critical services. This information can then be used to pinpoint or prevent issues that cause performance problems, outages and downtime. ITSCAPE helps IT managers more quickly resolve service issues, keep an accurate view of "who changed what when." ITSCAPE can also be used to prepare to optimize IT systems or for datacenter transformation initiatives such as virtualization, consolidation, and/or migration. Traditional auto-discovery and dependency mapping solutions are expensive to purchase, install, and maintain. ITSCAPE is changing this. ITSCAPE requires no hardware, expensive training classes, or consulting services and is priced to be affordable for small to medium sized businesses. Next, ITSCAPE can be set up and functioning in minutes, is self-maintaining, requires no upgrades, and has little to no impact on existing IT systems. Finally, it can provide initial discovery and dependency mapping results in an hour or less and is easy-to-use and understand by both technical and non-technical staff.
• OrthoAccel Technologies — Straighten Your Smile Faster With AcceleDent SoftPulse Technology. Simple To Use, Allowing Braces To Feel More Comfortable With Only 20 Minutes Daily Use!
• Fairway Medical Technologies — Fairway designs, develops and manufactures innovative new medical device technologies.

Portfolio highlights

• iNGage — iNGage is a manufacturer of high-performance inertial MEMS navigation sensors for high-volume autonomous mobility markets
• STELLARIA — Stellaria is a 200 MWe molten salt reactor with 20-year autonomy, delivering safe, sustainable nuclear power without refueling.
• STELLARIA — Stellaria is reimagining sustainable rapid neutron nuclear energy.

Portfolio highlights

• Amarris — Amarris Groupe : expertise comptable innovante pour freelances, entrepreneurs, RH et investisseurs immobiliers.
• Starway — Starway is speciaized in the designing and marketing of electric bicycles.
• Easy Cash — Easy Cash is a marketplace that offers a broad range of used and refurbished products includes electronics, house appliances, and telephony.

Portfolio highlights

• AlephD — The programmatic performance company
• Stootie — Stootie is a buyer-focused classifieds platform. It's mobile. It's local. And it's quick. Really quick!This is the tool you use to get that phone power outlet you forgot when you're working in a Starbucks. Or pretty much anything else. Anywhere. Anytime.The keywords of Stootie are : marketplace, P2P business, local,mobile, realtime, platform.Stootie is currently available on iOS and Android.
• Voluntis — Voluntis design digital therapeutics to people across multiple areas to self-manage their treatment improving real-world outcomes.

Portfolio highlights

• ICTYOS — Ictyos is a startup that creates marine leathers using a circular and sustainable economy logic. It recycles fish skins from the culinary and catering industries.
• Upciti — Upciti provider of precise, localized and real-time data for smart cities and smart retailers. we produce and make available data at the service of man to make cities smarter and more pleasant to live for all on a daily basis.
• Hyperplan — Digital agriculture platform for enterprise agribusiness teams. Field-level crop intelligence & in-season signals to size markets, manage risk, and act faster.

Portfolio highlights

• ACEN —
• Globe Telecom — Globe Telecom is a provider of mobile telephony and broadband services.
• Bloomberry Resorts — Bloomberry Resorts is an integrated resort developer and operator. The company strives to enhance overall value through sound, prudent, and effective management, an efficient and effective management information system, effective risk management, and more.

Portfolio highlights

• ManoMano — ManoMano is an online marketplace for DIY, home improvement, and gardening products. It is a website of a community of home and DIY lovers that enables them to exchange tips and advice on their DIY or gardening projects. In addition to this expert advice, ManoMano puts clients in touch with a helping hand who will help them achieve their DIYprojects.ManoMano was founded in 2013 and is headquartered in Paris, Ile-de-France, France.
• TISSIUM — TISSIUM is creating the future of tissue reconstruction. Learn more about our novel solutions based on our proprietary platform of biomorphic programmable polymers.
• Presto Engineering — We enable companies imagine and implement microelectronics solutions in high-value markets such as Industrial, Automotive, Communication and Medical.

Portfolio highlights

• MagREEsource — MagREEsource is to link the circular economy by providing a green metallurgical solution through short loop recycling of NdFeB magnets to stabilise and diversify the supply of Rare Earth permanent magnets.
• HALIAS Technologies — HALIAS Technologies is an IT firm that offers digital services and solutions for commercial and industrial firms.
• My Digital Buildings — My Digital Buildings is a software platform for producing and analyzing geographical building data, including 3D point clouds, 2D blueprints, BIM models, and virtual tours.

Portfolio highlights

• Patrowl — Identify and harden your External Security Posture with Patrowl, the leader. Let us manage time-consuming tasks and focus on remediation.
• Exeliom — Exeliom is a clinical-stage biopharmaceutical company tackling the use of commensal bacteria as drugs. Their mission is to harness the therapeutic potential of gut microbiota to enable people to lead longer and healthier lives. They are committed to developing the next generation of probiotics: innovative microbial therapies.Exeliom develops anew class of medicines called Live Biotherapeutics based on their growing understanding of the central role of the microbiota in the immune system.The company was founded in 2016 and is headquartered in Dijon, France.
• Vade Secure — Vade is a global leader in predictive email defense, protecting 1 billion inboxes worldwide. AI-based email security for Microsoft 365.

Portfolio highlights

• HIKOB — In a world with limited resources and confined space, the understanding and exploitation of our physical assets, capital goods, infrastructures, industrial equipments and machinery, is a crucial challenge for years to come. During the life cycle of these assets, the acquisition of data is essential and is a key factor in the process of: -Knowledge & understanding: It consists in a better understanding to create and innovate. - Exploitation & maintenance: It consists in a better use to reduce costs and make it last. However to be useful and data has to be captured at the source on these assets in their real life conditions and in their real context of use: - Outdoor environment - Large natural spaces - Harsh or regulated environments - Mobility contexts HIKOB’s mission is to develop and provide wireless autonomous multi-points data acquisition system to capture information on the field and learn from reality, in all contexts and conditions. Provided as a fully integrated hardware and software platform, HIKOB systems collect complex data and support advanced data processing algorithms. Quick and easy to install, long lasting, HIKOB systems enable not only the multiplication of measurement points but also deployments in all contexts and all type of fields, while avoiding the installation and maintenance costs of traditional wired systems. HIKOB technologies are a key enabler and a result booster for businesses in their development and innovation process as well as for operations and maintenance.
• ARGOSIM — Powerful Tools for a Simulation-Driven Design Process.
• BiBOARD — BiBOARD is a Grenoble based business intelligence company. The company has established itself as a key player in this market. It also managed to bring on-board some big name clients, including Orange, Clarins, and Domaines Barons de Rothschild (Lafite), and key partners including BULL and ATOS. In addition to providing comprehensive and dynamicvisualization of data, one of the things BiBOARD also brings to the market is a collaborative aspect, where users can communicate with their clients, partners, and suppliers via a secure hypertext link.The company was founded in 2008 and was acquired by Econocom on 2017.

Portfolio highlights

• DataBank — DataBank provides scalable and secure data center solutions for enterprises, offering colocation, cloud, and managed services. Our expert team ensures 24/7 support and maximum uptime for your critical IT infrastructure.
• IntelePeer — With IntelePeer's conversational ai platform, you'll increase revenue, improve customer interactions & make better business decisions.
• BeZero Carbon — The Carbon Ratings Agency | BeZero Carbon

Portfolio highlights

• MORFO — We combine local seeds, biological symbioses, drones and artificial intelligence to sustainably reforest and fight global warming around the world.
• Spinergie — Unlock Sustainable Energy with Spinergie: Transform operational and maritime data into actionable insights to reduce your carbon footprint and increase efficiency. Start your maritime green journey today!

Portfolio highlights

• Goodvest — Goodvest is an investment app (life insurance) that builds a better world, in line with your values and promoting performance.
• Jimmy — Jimmy is a supplier of carbon-free industrial heat to industrialists. The company designs and markets turnkey thermal generators, connected to the heating circuits of factories. These generators rely on a nuclear micro-reactor to create heat.
• One Biosciences — One Biosciences leverages single-cell technologies to identify new therapeutics for difficult-to-treat diseases. Magali Richard, David Schilansky, and Céline Vallot co-founded the company in Paris, Ile-de-France, France.

Portfolio highlights

• Spinergie — Unlock Sustainable Energy with Spinergie: Transform operational and maritime data into actionable insights to reduce your carbon footprint and increase efficiency. Start your maritime green journey today!
• Arkadia Space — Arkadia Space provides design, develop and commercialise engines and propulsion systems based on green propellants; the best alternative.