Who are Terse's investors?

Terse's investors include Y Combinator.

Where is Terse headquartered?

Terse is headquartered in New York, US.

Terse

YC F26

New York, US · Founded 2025 · 2 employees · 1 known investors

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Terse builds Durable Actors, an open source alternative to Cloudflare Durable Objects with higher memory limits, direct SQLite storage access, and default concurrency safety. It targets developers building background-agent and multiplayer infrastructure.

Also known as Terse Inc. dba Terse AI

AI & Machine Learning Cloud Computing Data & Infrastructure Developer Tools Enterprise Software API Infrastructure AIUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (F26)

Thomas KaratzasFounder

Olivier Simard-Morissette Founder/CTOOlivier Simard-Morissette is the founder and CTO of Terse, which builds Durable Actors, an open source alternative to Cloudflare Durable Objects for developers working on background-agent and multiplayer infrastructure. He previously worked as a Principal Software Engineer at Pigeon and as a Senior Software Engineer at Squarespace and The New York Times.

Thomas Elias Karatzas Founder/CEOFounder and CEO of Terse, which builds Durable Actors, an open source alternative to Cloudflare Durable Objects for developers working on background-agent and multiplayer infrastructure. He previously spent seven years as a Staff Engineer at Apple on Siri and Apple Intelligence, founded Know Your VC (acquired by RateMyInvestor), and holds a software engineering degree from McGill University.

Investors · 1

Y Combinator✓ confirmed by TerseSan Francisco · $500K

How we know: the company's own site · the Y Combinator directory · ycombinator.com · Not right? Tell us

Frequently asked questions

What does Terse do?: Terse builds Durable Actors, an open source alternative to Cloudflare Durable Objects with higher memory limits, direct SQLite storage access, and default concurrency safety. It targets developers building background-agent and multiplayer infrastructure.
Who are Terse's investors?: Terse's investors include Y Combinator.
Where is Terse headquartered?: Terse is headquartered in New York, US.