ISAI
ActiveVenture Capital
Updated: ·
Financial History
Total Raised
N/A
Valuation
N/A
Leadership Team
Key people at ISAI.
Key people at ISAI.
Key people at ISAI.
ISAI is a pioneering French venture capital firm often described as “the French Tech Entrepreneurs’ Fund.” Founded in 2009, its mission is to back bold, tech-driven entrepreneurs building the next generation of European and global digital champions. ISAI operates at the intersection of entrepreneurship and capital, leveraging deep operational experience from its founder-entrepreneurs to support startups from pre-seed through growth stages.
The firm’s investment philosophy centers on backing disruptive digital startups—both B2B and B2C—with at least one French founder, primarily in Europe and the U.S. ISAI focuses on early-stage technology, media, and consumer sectors, with strong exposure to SaaS, AI, fintech, marketplaces, and deep tech. Known for backing breakout successes like BlaBlaCar, Doctolib, Qonto, and 360Learning, ISAI has become a cornerstone of the French and European startup ecosystem, helping founders scale from idea to international impact.
---
ISAI was founded in 2009 by a group of successful French tech entrepreneurs, including Pierre Kosciusko-Morizet, Geoffroy Roux de Bézieux, and Stéphane Treppoz. Their vision was to create a fund that truly understood founders—because it was built by them. Rather than a traditional institutional VC, ISAI was designed as a “fund of entrepreneurs, for entrepreneurs,” pooling capital from over 300 fellow founders and tech leaders who became limited partners.
From the start, ISAI positioned itself as a hands-on, founder-friendly partner, offering not just capital but mentorship, strategic guidance, and access to a powerful network. Over time, the firm evolved from a pure early-stage VC into a multi-strategy investment platform, expanding into late-stage venture, private debt, and growth/buyout investments while maintaining its core DNA of entrepreneurial alignment. With headquarters in Paris and a growing presence in New York, ISAI has played a key role in shaping the French Tech movement and helping European startups go global.
---
---
ISAI sits at the heart of the European tech renaissance, riding the wave of digital transformation across industries. As Europe has matured into a credible alternative to Silicon Valley for tech innovation, ISAI has helped prove that world-class startups can be built and scaled from Paris and other European hubs.
The firm benefits from strong macro tailwinds: rising founder ambition, increased institutional appetite for European tech, and growing cross-border collaboration between European and U.S. ecosystems. ISAI’s focus on founder-friendly terms, operational support, and international expansion aligns perfectly with the needs of today’s global-first startups.
Beyond capital, ISAI plays a cultural role in the ecosystem: it reinforces the idea that successful entrepreneurs should reinvest in the next generation, creating a self-sustaining cycle of innovation. Its model has inspired similar founder-led funds and helped professionalize the European VC landscape while keeping a strong emphasis on founder empowerment.
---
Looking ahead, ISAI is well-positioned to remain a leading force in European venture capital. As more European startups aim for global scale from day one, ISAI’s dual presence in Paris and New York, combined with its founder-centric approach, will continue to attract top-tier entrepreneurs.
The firm is likely to deepen its focus on AI, fintech, and enterprise SaaS, while also exploring emerging opportunities in Web3, climate tech, and deep tech. Its multi-fund structure gives it flexibility to back startups at every stage—from the earliest idea to growth and buyout opportunities.
In the broader context, ISAI’s evolution reflects a maturing European tech ecosystem: one that is increasingly confident, well-funded, and globally competitive. As long as bold founders keep emerging from Europe, ISAI will likely remain one of the go-to partners for those aiming to build the next BlaBlaCar or Doctolib.
| Date | Company | Round | Lead Investor(s) | Co-Investor(s) |
|---|---|---|---|---|
| Feb 9, 2026 | Naboo | $70.0M Series B | Lightspeed Venture Partners | Isai, Notion Capital, Ternel |
| Apr 1, 2025 | Fairly Made | $16.0M Series A | — | Aglae Ventures, LeFonds |
| Feb 1, 2025 | Neuralk-AI | $4.0M AI - Seed | — | Motier Ventures |
| Jan 1, 2025 | Keey Aerogel | $19.0M Series A | — | Serena Capital, Frédéric Mazzella |
| Dec 1, 2024 | Wecasa | $19.0M Series B | — | 50 Partners Impact, DN Capital, Serena Capital, Frédéric Mazzella |
| Dec 1, 2024 | GROWL | $5.0M Seed | — | EQT Ventures, Sequoia Capital, Y Combinator, Charles Gorintin |
| Nov 1, 2024 | Pruna AI | $7.0M Seed | — | AirAngels, Entrepreneur First, General Catalyst, Moonfire Ventures, Motier Ventures, Speedinvest, Charles Gorintin, Jean Charles Samuelian, Mathilde Collin, Riccardo Zacconi, Roxanne Varza, Sebastian Knutsson, Simon Dawlat, Thomas Rebaud, Varsha Rao |
| Sep 1, 2024 | Dntro | $800K Seed | — | Founders Future, XAnge, Alexandre Prot, Didier Valet, Maxime Paradis, Raphael Vullierme, Steve Anavi |
| Aug 1, 2024 | Stori | $110.0M Venture Round | — | 305 Ventures, Alpine Ventures, Bertelsmann Asia Investments (BAI), CapitalG, Concept Ventures, General Catalyst, Goodwater Capital, Igah Ventures, Infinity Ventures Crypto, Lightspeed Venture Partners, Maven Capital Partners, Glenn Solomon, Notable Capital, Playfair Capital, Redpoint Ventures, Red Sea Ventures, Andrew Steinwold, David Haywood Smith, David Mytton, Fernando Gadotti, Guilherme Weege, Jeremy Yap, Josh Elman, Klaus Nyengaard, Matteo Gamba, Michael Moritz, Paul Yacoubian, Renato Freitas, Sahil Lavingia, Siddharth Singhal, Suhail Doshi |
| Jul 1, 2024 | Cognyx | $2.0M Seed | — | 50 Partners, Autotech Ventures, Kima Ventures, Motier Ventures, Pareto Holdings, Redpoint Ventures, Emmanuel Seuge, Thibaud Elziere |
| Jun 1, 2024 | Substrate | $8.0M Seed | — | 2048 Ventures, Andreessen Horowitz, Anti fund, CRV, Jenny Fielding, Scott Hartley, Founders Fund, General Catalyst, Lightspeed Venture Partners, Glenn Solomon, Hans Tung, Redpoint Ventures, Red Sea Ventures, Y Combinator, Amjad Masad, Barr Moses, Gokul Rajaram, Guillermo Rauch, Immad Akhund, Josh Elman, Matt Brezina, Paul Yacoubian, Sahil Lavingia, Suhail Doshi |
| May 1, 2024 | Patronus AI | $17.0M Series A | — | 10D, Eclipse Ventures, Haun Ventures, Lightspeed Venture Partners, Glenn Solomon, Hans Tung, Notable Capital, Redpoint Ventures, Red Sea Ventures, Amjad Masad, Barr Moses, Gokul Rajaram, Josh Elman, Pankaj Patel, Paul Yacoubian, Sahil Lavingia, Suhail Doshi, Yair Weinberger |
| Dec 1, 2023 | Catio | $3.0M Seed | — | Alumni Ventures, Angel Labs, Array Ventures, Brighter Capital, DCM, ENIAC Ventures, Kamran Ansari, Jefferies, Lerer Hippeau, Ludlow Ventures, Precursor Ventures, Rally Ventures, RRE Ventures, Silicon Badia, Mark Ghermezian, Ahmed Mhiri, Headline (formerly e.ventures), Trust Ventures |
| Mar 1, 2023 | Elyn | $3.0M Seed | — | Catapult Capital, CoinFund, Cowboy Ventures, Draper Associates, Embedded Capital, Evolve VC, ff Venture Capital, First Round Capital, FJ Labs, Founders Future, HOF Capital, Lobby Capital, Mayfield, Motier Ventures, Rick Yang, NFX, Pareto Holdings, Sierra Ventures, Spark Capital, The Hit Forge, Valar Ventures, White Star Capital, XAnge, Y Combinator, Alexandre Prot, Didier Valet, Marcus Segal, Maxime Paradis, Naveen Selvadurai, Raphael Vullierme, Shervin Pishevar, Steve Anavi, Tom Williams |
| Mar 1, 2023 | DataDome | $42.0M Series C | — | 50 Partners, 50 Partners Impact, eFounders, Elephant Partners, XAnge, Justin Ziegler, Thibaud Elziere |
| Mar 1, 2023 | KillBills | $4.0M Seed | — | 50 Partners, 50 Partners Impact, 7percent Ventures, Dragonfly Capital Partners, eFounders, Elephant Partners, Hack VC, Meta Change Capital, #SecretFund, Unruly Capital, Spencer Noon, XAnge, Ernest Oppetit, Fernando Martinelli, Frederic Montagnon, Itamar Lesuisse, John Lilic, Julien Romanetto, Nicolas Debock, Nicolas Steegmann, Thibaud Elziere |
| Dec 1, 2022 | Evaneos | $21.0M Venture Round | — | Serena Capital |
| Nov 1, 2022 | Screeb | $2.0M Seed | — | 50 Partners Impact, 7percent Ventures, Ankaa Ventures, Dragonfly Capital Partners, Hack VC, Meta Change Capital, #SecretFund, Unruly Capital, Spencer Noon, XAnge, Didier Valet, Ernest Oppetit, Fernando Martinelli, Frederic Montagnon, Itamar Lesuisse, John Lilic, Julien Romanetto, Nicolas Debock, Nicolas Steegmann, Thibaud Elziere |
| Oct 1, 2022 | Beebs | $6.0M Series A | — | Aglae Ventures, LeFonds |
| Oct 1, 2022 | Citalid | $12.0M Series A | — | Axeleo Capital, Elaia Partners, Founders Future |
| Oct 1, 2022 | TakeTurns | $3.0M Seed | — | Elaia Partners, Founders Future |
| Sep 1, 2022 | La Solive | $1.0M Seed | — | 50 Partners, 50 Partners Impact, DN Capital, Super Capital VC |
| Jul 1, 2022 | Alegria.tech | $3.0M Seed | — | 50 Partners Impact, DN Capital, Inovexus, Damien Fretay, Rand Hindi |
| Jul 1, 2022 | Stori | $50.0M Series C | — | Glenn Solomon, Notable Capital, Redpoint Ventures, Red Sea Ventures, Josh Elman, Paul Yacoubian, Sahil Lavingia, Suhail Doshi |
| Jul 1, 2022 | Morpho Labs | $18.0M Seed | — | 360 Capital Partners, 50 Partners Impact, 7percent Ventures, Acton Capital Partners, AngelList Syndicator, Ankaa Ventures, Atomico, Bonfire Ventures, Cherry Ventures, CrunchFund, Cultivation Capital, Dragonfly Capital Partners, ENIAC Ventures, Far Out Ventures, Framework Ventures, General Catalyst, Hack VC, Christian Miele, Kima Ventures, Meta Change Capital, Next Frontier Capital, Passion Capital, Prototype Capital, Rarestone Capital, Redpoint Ventures, Robot Ventures, #SecretFund, Seedcamp, Singular, Speedinvest, Unruly Capital, Spencer Noon, Variant, VMG Partners, White Loop Capital, White Star Capital, XAnge, Akhil Paul, Andy Chung, Charlie Songhurst, Chris Murphy, David Hoffman, Didier Valet, Do Kwon, Ernest Oppetit, Fernando Martinelli, Frederic Montagnon, Itamar Lesuisse, John Lilic, Julien Romanetto, Julius Göllner, Mark Cuban, Matthias Hilpert, Nicolas Debock, Nicolas Steegmann, Rand Hindi, Richard Fearn, Romain Lapeyre, Thibaud Elziere, Thibault Poutrel |
