Ian McInnis
FounderCo-founder, CTO, President at Multiplier
San Francisco, California, United States
FoundedMultiplier · YC
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About
Ian McInnis studied mathematics at Princeton and worked as an investor and systems builder focused on large language models at Bridgewater Associates. He has background in classical acting and has published research work.
Co-founder, CTO, President at MultiplierYC X26
Intro paths
Ian went through Y Combinator (Spring 2026) — any YC alum in your network can reach them through the YC community.
In turn, Ian can intro founders to Multiplier's investors below.
Multiplier's investors · 20
Co-founders at Multiplier

Frequently asked questions
- Who is Ian McInnis?
- Ian McInnis studied mathematics at Princeton and worked as an investor and systems builder focused on large language models at Bridgewater Associates. He has background in classical acting and has published research work.
- Where does Ian McInnis work?
- Ian McInnis is Co-founder, CTO, President of Multiplier.
- What companies did Ian McInnis found?
- Ian McInnis founded Multiplier.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
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