Ossus
YC W26 · Active · Intelligence for cultural institutions
Same space
| Company | Category | Status | Program |
|---|---|---|---|
 assistant-uiShared: library, intelligence, infrastructureActiveAI, Devtools | AI, Devtools | Active | YCW25 |
 SazabiShared: native, infrastructureActiveAI, Devtools | AI, Devtools | Active | YCX26 |
 ZenterShared: public libraryAcquiredOther | Other | Acquired | YCW07 |
 Buró de IngresosShared: institution, infrastructureActiveDevtools | Devtools | Active | YCS21 |
 ShofoShared: library, infrastructureActiveAI, Data, Devtools | AI, Data, Devtools | Active | YCW26 |
Also from W26 in AI
All of W26| Company | Category | Status |
|---|---|---|
 /dev/fast/dev/fast is the AI-native code forgeActiveAI, Devtools | AI, Devtools | Active |
 10x ScienceThe AI-native platform for next-generation protein characterization.ActiveAI | AI | Active |
 21stUI building blocks for the agentic internetActiveAI, Devtools | AI, Devtools | Active |
 AemonThe Forward-Deployed AI Research EngineerActiveAI, Devtools | AI, Devtools | Active |
 Agentic FabriqThe control plane for AI agents.ActiveAI | AI | Active |
 Alt-XBuilding the best venue for private markets exposure.ActiveAI, Data | AI, Data | Active |
Founders
- Jonathan GörtzFounder/CEO
- Carl-Hugo JacobssonFounder
- Kaan SirinFounder/CTO
About Ossus
We build intelligence for cultural institutions. Our first commercial product is for the literature industry with a focus on school and public libraries. It is a AI-native OS for libraries, that helps librarians save time on tedious tasks and lets them focus on their patrons.
- YC batch
- W26 · Winter 2026
- Status, per YC
- Active
- Category
- AI, Developer tools
- Team size
- 3
- Location
- San Francisco, CA, USA
- Founded
- 2026
- Checked
- 1h ago
Ossus: questions
Which YC batch was Ossus in?
Ossus was in Y Combinator's Winter 2026 batch (W26).
Is Ossus still active?
Y Combinator lists Ossus as active.
Who founded Ossus?
Ossus's founders, as listed on its YC page: Jonathan Görtz (Founder/CEO), Carl-Hugo Jacobsson (Founder), Kaan Sirin (Founder/CTO).
Where is Ossus based?
Ossus lists San Francisco, CA, USA as its location on YC's directory.
Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.