Our portfolio

We fund early stage Startups.  Accross all sectors.  One  obsession: performance.

Y Combinator deals

Blast allowed its members to invest several million euros in several Y Combinator startups.
Blast is neither affiliated with nor an official partner of Y Combinator
Y Combinator
B2B AI
Spring 2025

The LLM Data

SaaS to help AI teams with the performance of their LLMs.

Y Combinator
Fintech
Spring 2025

QFEX

1st stock exchange open 24 hours a day for US shares, commodities, FX.

Y Combinator
Fintech
Spring 2025

AI Approval

AI B2C real estate credit platform for buyers.

Y Combinator
Cyber
Spring 2025

Mindfort

AI agents to secure and correct corporate cyber breaches.

Y Combinator
B2C AI
Spring 2025

Chiron

Mathematical reasoning verified in real time.

Y Combinator
B2B SaaS
Spring 2025

Mesmer

AI co-pilot of CTOs to accelerate the product roadmap.

All our other deals

3,7M€
Biotech
Octobre 2025

Cementic

Cementic révolutionne l’un des actes médicaux les plus pratiqués avec une technologie de rupture conçue par et pour les 2,5 millions de dentistes dans le monde.

4,7M€
October 2025

Lattice Medical

Lattice Medical reinvents breast reconstruction thanks to an absorbable bioprosthesis that allows a breast to be regenerated naturally.

2,9M€
Deeptech
Juillet 2025

Aviwell

Aviwell réinvente l'élevage animal en fusionnant sciences de la vie et IA.

5,0M€
Fintech
July 2025

Defacto

Defacto lends SMEs money in less than 30 seconds to finance their cash flow.

5,0M€
Biotech
July 2025

One Biosciences

One Biosciences is revolutionizing cancer analysis by deciphering each cell

5,0M€
Spacetech
Juin 2025

U-Space

U-Space déploie une nouvelle génération de satellites clé en main : plus fiables, moins chers et prêts 2x plus vite.

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