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

€0.5M
Marketplace
January 2023

Sedeo

Sedeo is the first all-in-one, 100% digital event equipment rental platform. The ambition is to bring innovation and simplicity to a sector where renting equipment for an event is a cumbersome and complicated experience.

€1.0M
E-commerce
December 2022

Ulysse

Ulysse is a website selling airline tickets that puts the user at the center of his concerns. Ulysse offers the safest, easiest and most transparent experience, from booking to takeoff, thanks to direct connections to airlines.

€1.5M
Biotech
February 2025

Tomorrow Bio

Tomorrow Bio offers a state-of-the-art cryogenization solution.

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