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About
Kaan Sirin is founder of Ossus, which builds software for managing library operations including cataloging, circulation, and inventory management.
CTO at OssusYC W26
Intro paths
Kaan went through Y Combinator (Winter 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Jared Friedman, YC Group Partner — the partner who ran Ossus's batch and knows the company first-hand. YC profile ↗
In turn, Kaan can intro founders to Ossus's investors below.
Ossus's investors · 12
Co-founders at Ossus
Frequently asked questions
- Who is Kaan Sirin?
- Kaan Sirin is founder of Ossus, which builds software for managing library operations including cataloging, circulation, and inventory management.
- Where does Kaan Sirin work?
- Kaan Sirin is CTO of Ossus.
- What companies did Kaan Sirin found?
- Kaan Sirin founded Ossus.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
Nanyang Technological University Singapore mafia123
Also came through, then founded or led a company.
The Faculty of Engineering at Lund University mafia43
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Ossus's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights