François-Xavier Vannesson

Account Director at Microsoft + Startups Investor & Advisor

📍 France🔄 Updated September 2026💼 9 investments📅 5 years investing🗓 Last invested Jul 2026
Angel investor🌍 FranceInvested this quarter
9
Total investments
1
Early stage
4
Mid stage
2
Late stage
5y
Years active

Portfolio

9 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor at Edonia
Jul 2026
Unlocking microalgae potential ● EIT Food Seedbed Incubator (2023 Cohort) ● "Deeptech" certified by French Public Investment Bank (BPI) #microalgae #alternativeprotein
Investor
Nov 2025
Spark develops local production sources of clean hydrogen. Our proprietary technology, unique worldwide, uses non-thermal plasmas to convert (bio)methane into hydrogen and carbon black. This results in a zero or negative carbon footprint for hydrogen production, with a very low electricity requirement. Spark aims to produce hydrogen directly on site through its modular system and addresses the need for a cost-effective source of clean hydrogen for industry and carbon-free heavy mobility. Today, we are on the way to deploy industrial pilots to prepare commercialization.
Investor at Dotomics
Oct 2025
At .omics, we’re building transformer-based foundation models for plant biology. Turning seed companies’ data into actionable biological insights.
Investor at Weefin
Apr 2025
🌱 WeeFin is revolutionizing sustainable finance. Our SaaS platform empowers financial institutions to build and scale high-impact sustainability strategies—faster, smarter, and with confidence. By unifying ESG data into a single source of truth and enabling seamless collaboration across teams, we help our clients turn regulatory pressure into strategic advantage. 🚀 Since launching oft he platform in 2021, WeeFin has earned the trust of over 40 clients managing nearly €7,000 billion in assets. Backed by an international team based in Paris and London, we’re active in 10 countries and growing fast. In 2025, we raised a €25 million Series B to accelerate our growth, expand our product offering, and scale our impact across global markets. 🥇 Recognized as Best Technological Innovation for ESG (Agefi), Member of the Impact 120 Index (Mouvement Impact France), and awarded Best Data Management Initiative for ESG (Data Management Insight A-team)
Investor at Orus Energy
Jul 2024
The flexibility of the electricity grid is what will make or break the energy transition to a decarbonized and renewable electricity mix. ‍ We are leveraging the power of AI to unlock a tremendous potential of electrical flexibility in your commercial buildings.
Investor at Urbyn
Jun 2023
Urbyn utilise les nouvelles technologies afin de proposer des services de gestion et de recyclage des déchets optimisés pour les entreprises. Notre réseau de prestataires professionnels, experts de leur filière déchet, et notre plateforme digitale permet de diminuer votre impact environnemental, et vos coûts et de simplifier votre gestion, pour tous vos déchets et sur tout le territoire.
Investor at Klaro
Feb 2022
Maximisez le pouvoir dachat de vos salariés avec Klaro ! En moyenne, chaque foyer passe à côté de 110 € daides mensuelles auxquelles il a droit. Grâce à notre plateforme, les entreprises permettent à leurs salariés de recevoir ce complément de revenus qui leur est du. Tous les salariés sont concernés : notre plateforme intègre plus de 1500 aides nationales, régionales ou locales, ainsi que des aides propres à chaque entreprise. Les démarches administratives pour demander ces aides sont gérées simplement depuis la plateforme et nos experts accompagnent individuellement vos salariés pour les obtenir.
Investor at Billiv
Jan 2022
🇺🇸 Billiv is an innovative solution, entirely dedicated to retailers and compatible with all cash register and CRM software on the market. With Billiv, you can : - Increase your customer base: Register more customers, more quickly, while collecting a maximum amount of qualified, usable data. - Build loyalty: reate an intuitive loyalty program or optimize an existing one to strengthen customer relations. - Multiply customer reviews: collect up to 5 times more reviews thanks to an intelligent, fluid customer journey. - Dematerialize receipts: transform the sales receipt into a genuine communication tool, while reducing its environmental impact. - Launch targeted marketing campaigns: create SMS campaigns and push notifications (via mobile wallet) to reach your customers at the right time. -- 🇫🇷 Billiv est une solution innovante, entièrement dédiée aux retailers et compatible avec tous les logiciels de caisse et CRM du marché. Avec Billiv, vous pouvez : - Accroître votre base de clients : enregistrez plus de clients, plus rapidement, tout en collectant un maximum de données qualifiées et exploitables. - Fidéliser efficacement : créez un programme de fidélité intuitif ou optimisez un programme existant pour renforcer la relation avec vos clients. - Multiplier les avis clients : recueillez jusquà 5 fois plus davis grâce à un parcours client intelligent et fluide. - Dématérialiser les tickets de caisse : transformez le ticket de caisse en un véritable outil de communication, tout en réduisant limpact environnemental. - Lancer des campagnes marketing ciblées : créez des campagnes par SMS et notifications push (via mobile wallet) pour toucher vos clients au bon moment.
Private Shareholder at Nubiance
May 2021
Based In Paris, Nubiance® Is The First French Brand Dedicated To Developing High Performance Skin Care Products Dedicated To Nubian Skin (Brown To Black Skin). Our Products Are Inspired By Our Real Clients Needs And We Make Them Available To The Most Of Them In More Than 25 Countries. We Believe That Beautiful Skin Should Be Made Available For All !
mid stageCosmetics
Experience · 10 entries
All (10)
Investments (9)
2026
Investor at Edonia
Jul 2026
Unlocking microalgae potential ● EIT Food Seedbed Incubator (2023 Cohort) ● "Deeptech" certified by French Public Investment Bank (BPI) #microalgae #alternativeprotein
2025
Investor
Nov 2025
Spark develops local production sources of clean hydrogen. Our proprietary technology, unique worldwide, uses non-thermal plasmas to convert (bio)methane into hydrogen and carbon black. This results in a zero or negative carbon footprint for hydrogen production, with a very low electricity requirement. Spark aims to produce hydrogen directly on site through its modular system and addresses the need for a cost-effective source of clean hydrogen for industry and carbon-free heavy mobility. Today, we are on the way to deploy industrial pilots to prepare commercialization.
Investor at Dotomics
Oct 2025
At .omics, we’re building transformer-based foundation models for plant biology. Turning seed companies’ data into actionable biological insights.
Investor at Weefin
Apr 2025
🌱 WeeFin is revolutionizing sustainable finance. Our SaaS platform empowers financial institutions to build and scale high-impact sustainability strategies—faster, smarter, and with confidence. By unifying ESG data into a single source of truth and enabling seamless collaboration across teams, we help our clients turn regulatory pressure into strategic advantage. 🚀 Since launching oft he platform in 2021, WeeFin has earned the trust of over 40 clients managing nearly €7,000 billion in assets. Backed by an international team based in Paris and London, we’re active in 10 countries and growing fast. In 2025, we raised a €25 million Series B to accelerate our growth, expand our product offering, and scale our impact across global markets. 🥇 Recognized as Best Technological Innovation for ESG (Agefi), Member of the Impact 120 Index (Mouvement Impact France), and awarded Best Data Management Initiative for ESG (Data Management Insight A-team)
2024
Investor at Orus Energy
Jul 2024
The flexibility of the electricity grid is what will make or break the energy transition to a decarbonized and renewable electricity mix. ‍ We are leveraging the power of AI to unlock a tremendous potential of electrical flexibility in your commercial buildings.
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Investment activity
2021–2026 · 9 investments
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