Y Combinator · S25
Y Combinator Summer 2025 startups
RemJobs lists 163 startups from Y Combinator's Summer 2025 batch. 139 of the 163 startups are based in the United States, and 96 in San Francisco. Between them they are in 10 countries and 26 cities. 10 are hiring remotely.
Updated
- startups
- 163
- countries
- 10
- cities
- 26
- hiring remotely
- 10
Summer 2025 startups
- b12 LabsYC S25AI-powered chemical synthesis platform. Plan complex routes, design experiments, and automate lab workflows. Remote: Worldwide
- SolvaYC S25The domain specific AI for claims that gives leading insurers clarity and speed on the most complex claims New York City, United States Remote: Worldwide
- ComenaYC S25We build AI agents that automate order processing for industrial distributors and manufacturers. Say goodbye to inside sales and customer service teams spending hours on manual… Ottobrunn, Germany
- FintoYC S25Finto builds AI accounting software for enterprise finance teams. We automate the invoice-to-pay process from their email inbox to their ERP. Cutting out 80% of the accountants… Munich, Germany
- HalluminateYC S25We help foundation model labs and enterprises train computer use AI with data and sandboxes. A knowledge worker spends 90% of their day on a computer. A productive AI agent must… San Francisco, United States
- InterfereYC S25Interfere empowers engineers, product managers and designers with real-time understanding of previously unseen bugs and issues. New York City, United States
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157 more S25 startups
Unlock the full list, every company on the map, and their founders, emails, LinkedIn and careers pages.
Where they are
12 more in other countries or with no known location
Hiring remotely
10 startups from S25 had at least one open remote role when their job boards were last read, 59 remote roles between them.
Other batches
Questions
How many startups are in Y Combinator's Summer 2025 batch?
RemJobs lists 163 startups from the Summer 2025 batch (S25) as of Oct 2, 2026, including b12 Labs, Solva, Comena, Finto and Halluminate. The count covers the companies we have found, which may be fewer than the batch itself.
Where are Y Combinator Summer 2025 startups based?
139 of the 163 startups are based in the United States, and 96 in San Francisco. Between them they are in 10 countries and 26 cities. By country: United States (139), Germany (4), United Kingdom (3), Brazil (1) and Canada (1).
Which S25 startups are hiring remotely?
10 startups had open remote roles when their job boards were last read, 59 remote roles between them, including b12 Labs, Solva, Uplift AI, burnt and Reacher.
Can I contact the founders of S25 startups?
Each company has a free public profile. 9 of them have founder names on file, and members see the founders, their emails where found, LinkedIn and careers pages, and every company on the map.
Companies come from public sources: their own websites, public startup directories and accelerator portfolios, and their public job boards (Greenhouse, Lever, Ashby), which were last read through Oct 2, 2026. A company that is missing or out of date can write to us from the footer.