Jean Weill

Associate @ C4 Ventures | Co-Founder NextInwest | PhD in Theoretical Physics

📍 France🔄 Updated September 2026💼 10 investments📅 2 years investing🗓 Last invested Mar 2026
VC🌍 FranceInvested this year
10
Total investments
3
Early stage
3
Mid stage
2
Late stage
2y
Years active

Portfolio

9 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Mar 2026
We create abundant and cheap gas out of thin air using atomic energy. Want to join our mission? Go on our website Mission > Join Our Team > General Application Or hit this link directly: https://airtable.com/appfshNOv7qcwdy5F/shrDbQa7dkT4Jt9FR
mid stageOil and Gas
Investor
Mar 2026
Real world. Real intelligence.
Investor & Member
Jan 2026
OPRTRS is an operator-led investment platform backing founders at the very beginning. We’re powered by 170+ top tech operators who know how to ship, scale, and survive the early chaos. We believe operators build the best companies and support each other better than any boardroom ever could. So we’ve turned that conviction into a community: a network of current and former leaders from OpenAI, Palantir, Stripe, Mistral AI, Qonto, Revolut, Datadog, Doctolib, Hugging Face, Wiz, Rippling, Backmarket, and dozens more. We invest €200k in the first rounds and surround founders with hands-on operator support: GTM, product, hiring, internationalization, fundraising. No theatre, no fluff. Just people who’ve done the work. Our core team: Christophe Raynaud (Cofounder @ ISAI) Noé Gersanois (ex-Partner @ Raise) Younès Rharbaoui (ex-Partner @ The Family) Supported by Renaud Boutet (SVP Product @ Datadog) as Venture Partner. We’re backed by great partners: Leblon Capital, Kima Ventures, Motier Ventures, Financière Saint-James - who trust us to spot and support the next generation of breakout operators-turned-founders. Since launching in 2024, we’ve already backed 15 ambitious teams, from deep tech to AI to industrial innovation. What matters to us isn’t the sector it’s the ambition and the builders behind it. If you’re an operator making the leap, or a founder who values hands-on expertise over PowerPoints, we’d love to meet you: hello@oprtrs.club
Investor
Sep 2025
At Gobano Robotics, we develop cutting-edge AI robotic models to automate the most dexterous tasks. We deliver tailored models with the speed, accuracy, and reliability industry demands.
Investor
Jul 2025
At EverDye, we are depolluting the textile industry by providing a greener, faster and energy-efficient dyeing process. No waste and an improved circularity with our recyclable and reusable dye.
Investor
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
Dec 2024
BAO FAMILY, ce sont des personnalités créatives et ambitieuses qui bousculent les codes de la cuisine chinoise. Notre devise : GOOD FOOD, GOOD PEOPLE, COOL PLACE Ce qui nous anime c’est de faire voyager les gens à travers nos 3 restaurants - Petit Bao (échoppe comme à Shanghai), Gros Bao (cantine comme à Hong Kong) et Bleu Bao (comme une maison traditionnelle chinoise). Notre cuisine sinspire des spécialités culinaires des 8 régions de Chine et saccompagne de cocktails spécialement élaborés et twistés pour un voyage immédiat. Nous sommes portés par une seule envie, faire plaisir à un maximum d’inconnus en faisant vivre une véritable expérience, où chaque détail est une invitation à lévasion. Notre ambition, c’est d’ouvrir des lieux de vie aux univers uniques, inscrits dans le cœur des villes. Nos lieux prônent les rencontres, le plaisir, le partage. On est plein de good vibes, avec plein de personnalités passionnées… et on compte bien développer de nouveaux lieux à Paris et dans les spots français et européens les plus cools !
mid stageRestaurants
Investor
Aug 2024
Inference is the engine that powers AI, and Groq was built from the silicon up to deliver the worlds fastest inference at scale. We pioneered the LPU—the first processor designed specifically for AI inference—and are transforming that innovation into a global cloud platform powering production AI workloads. With the capital, infrastructure, and team to execute, were uniquely positioned to define the next era of AI infrastructure. The opportunity is massive, and its still wide open. Now lets go build it!
Experience · 14 entries
All (14)
Investments (10)
Founder (2)
2026
Investor
Mar 2026
We create abundant and cheap gas out of thin air using atomic energy. Want to join our mission? Go on our website Mission > Join Our Team > General Application Or hit this link directly: https://airtable.com/appfshNOv7qcwdy5F/shrDbQa7dkT4Jt9FR
mid stageOil and Gas
Investor
Mar 2026
Real world. Real intelligence.
Investor & Member
Jan 2026
OPRTRS is an operator-led investment platform backing founders at the very beginning. We’re powered by 170+ top tech operators who know how to ship, scale, and survive the early chaos. We believe operators build the best companies and support each other better than any boardroom ever could. So we’ve turned that conviction into a community: a network of current and former leaders from OpenAI, Palantir, Stripe, Mistral AI, Qonto, Revolut, Datadog, Doctolib, Hugging Face, Wiz, Rippling, Backmarket, and dozens more. We invest €200k in the first rounds and surround founders with hands-on operator support: GTM, product, hiring, internationalization, fundraising. No theatre, no fluff. Just people who’ve done the work. Our core team: Christophe Raynaud (Cofounder @ ISAI) Noé Gersanois (ex-Partner @ Raise) Younès Rharbaoui (ex-Partner @ The Family) Supported by Renaud Boutet (SVP Product @ Datadog) as Venture Partner. We’re backed by great partners: Leblon Capital, Kima Ventures, Motier Ventures, Financière Saint-James - who trust us to spot and support the next generation of breakout operators-turned-founders. Since launching in 2024, we’ve already backed 15 ambitious teams, from deep tech to AI to industrial innovation. What matters to us isn’t the sector it’s the ambition and the builders behind it. If you’re an operator making the leap, or a founder who values hands-on expertise over PowerPoints, we’d love to meet you: hello@oprtrs.club
2025
Investor
Sep 2025
At Gobano Robotics, we develop cutting-edge AI robotic models to automate the most dexterous tasks. We deliver tailored models with the speed, accuracy, and reliability industry demands.
Investor
Jul 2025
At EverDye, we are depolluting the textile industry by providing a greener, faster and energy-efficient dyeing process. No waste and an improved circularity with our recyclable and reusable dye.
Show all 14 entries ↓
Investment activity
2024–2026 · 10 investments
202422025520263
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