About
Ali Attar is the founder of Lightberry, a company in the F25 batch.
Founder, CPO at SigmaOSYC S21
Intro paths
YC
Ali went through Y Combinator (Summer 2021) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Gustaf Alstromer — the partner who ran SigmaOS's batch and knows the company first-hand. YC profile ↗
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In turn, Ali can intro founders to SigmaOS's investors below.
SigmaOS's investors · 4
Co-founders at SigmaOS
MG
Mahyad GhassemiFounder / CEO
SM
Saurav MitraFounder
Founder at LightberryYC F25
Intro paths
YC
Ali went through Y Combinator (Fall 2025) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Garry Tan, President & CEO of Y Combinator — the partner who ran Lightberry's batch and knows the company first-hand. YC profile ↗
→
In turn, Ali can intro founders to Lightberry's investors below.
Lightberry's investors · 5
Co-founders at Lightberry
SK
Stephan KoenigstorferFounder
SW
Stephan WolskiFounder/Head of Robotics