ISAI is a French venture capital firm founded in 2009 by a collective of successful internet entrepreneurs. Based in Paris, the fund operates on an unusual model: its limited partners are themselves founders and executives from the French tech ecosystem, which gives portfolio companies access to a network of operators rather than purely financial backers. The firm focuses on early-stage and growth-stage digital companies, primarily in France and broader Europe.
The fund was co-founded by Jean-David Chamboredon, who serves as CEO, alongside a founding cohort drawn from notable French internet exits. ISAI has raised several successive funds since its inception, though exact assets under management figures have not been publicly disclosed. Its investment thesis centers on B2B software, marketplaces, and digital infrastructure – sectors where its LP network can open doors and provide genuine commercial leverage.
Notable Investments
ISAI built its reputation backing early-stage French digital companies before they scaled internationally. Confirmed portfolio names from public sources include:
- Capitaine Train – a European rail ticketing platform acquired by Trainline in 2016, one of the firm's cleaner exits.
- Vestiaire Collective – the secondhand luxury fashion marketplace, now a global platform backed by Kering and Tiger Global.
- BlaBlaCar – ISAI participated in early rounds of the long-distance ridesharing leader, now valued at over $1.5 billion.
- Meilleurtaux – French financial comparison platform in insurance and credit.
In the crypto and blockchain segment specifically, ISAI's public portfolio count stands at six investments. Public information on the individual names and deal sizes within this slice of the portfolio is limited. The firm has not made prominent public announcements about dedicated crypto fund vehicles, suggesting these positions are held within its broader technology funds rather than through a specialist crypto mandate.
Team
Jean-David Chamboredon leads the firm as managing partner and CEO. He has been the public face of ISAI since founding and is a frequent commentator on the French startup ecosystem. Beyond Chamboredon, ISAI operates with a small investment team supplemented by its network of entrepreneur-LPs, who participate actively in deal sourcing and portfolio support. Full partner names beyond Chamboredon are not consistently disclosed in public filings or press materials.
Recent Activity
Over 2024 and into 2025, ISAI continued deploying from its later fund vintages, with publicly announced deals concentrating on SaaS and fintech rather than crypto-native assets. The firm has not announced a dedicated web3 or blockchain fund. Its crypto positions appear opportunistic – backing infrastructure or fintech-adjacent projects that intersect with its core digital commerce thesis rather than pure token plays.
For fundraising and regulatory filings, ISAI is registered with the Autorité des Marchés Financiers (AMF), France's financial markets regulator. Additional profile data is available on Crunchbase and the firm's own site at isai.fr.
ISAI remains a mid-sized but influential player in the French VC landscape. Its crypto exposure is modest relative to its overall portfolio and appears selective. Given the firm's entrepreneur-network model, any future crypto bets are likely to follow founders it already knows rather than emerging from a systematic token thesis.