Silicon Valley’s Y Combinator is one of the few startup accelerators European VCs say is worth its salt.
That said, just nine of the 143 startups in YC’s first-ever spring batch are European — though that’s proportionally up from 11 of the 223 companies in the summer 2024 intake. A total of 22 companies have one or more European founders, with France being the best represented country from the continent.
Meanwhile, 130 startups report working on AI — including 72 developing AI agents — alongside a handful of companies building robots for manufacturing and defence.
YC’s Spring 2025 cohort began in March at the accelerator’s San Francisco campus and runs until the end of June. Startups receive mentorship from notable YC partners such as Monzo founder Tom Blomfield and Gmail creator Paul Buchheit. Every company accepted into the programme gets a minimum of $500k in funding.
Here is the list of European startups that have publicly announced their participation in the spring batch, or are listed as Europe-based on YC’s website.
Moby Analytics
HQ: Paris
Moby Analytics provides a platform for financial auditors to build and deploy AI agents to automate workflows.
Powermatrix
HQ: Cambridge, England
Powermatrix produces efficient power supply systems for emerging technologies like GPUs, data centres and drones. It has built a patented circuit architecture which it claims can reduce energy loss by up to 50%.
Lucis
HQ: Paris
Lucis provides a regular blood testing service to provide patients with personalised health scores and lifestyle guidance.
Bloom
HQ: Zurich
Bloom allows users to quickly build and share mobile apps without needing to know how to code.
Cubic
HQ: London
Cubic is a platform for developers which automates the review of code — including the identification of bugs and suggestion of fixes.
Qfex
HQ: London
Qfex is a regulated global stock exchange for traditional financial markets, available anytime of day.
Clidey
HQ: London
Clidey is building Docucod, a tool for software developers to automatically generate and maintain documentation about their projects.
Nao Labs
HQ: Paris
Nao Labs is a code editor built for data workflows. Users — usually members of data teams or software developers — gain access to an AI agent which has data-specific tools so code can be written and deployed without sacrificing data quality.
Plexe AI
HQ: London
Plexe is an AI agent which builds and deploys predictive machine learning models from users’ natural language description.
While some startups may be listed as US-based during Y Combinator, many founders temporarily relocate for the programme — here's a look at the companies whose founders originally come from across Europe:
France:
- Nomi
- Lucis
- Vybe
- Nao Labs
- Flott HQ
- Kaelio
- Blaxel
- Moby Analytics
- Proby
UK:
- Crimson
- Leeroo
- Clarm
- Parsewise
- Clidey
- Throxy
Switzerland:
- Bloom
- Switzerland
- Clarm
- Parsewise
Germany:
- Mesmer
- The Robot Learning Company
- Crimson
- Alzonova
Netherlands:
- Airweave
- Bloom
Sweden:
- Vesence
Spain:
- Cua
Italy:
- Cua
