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About
Marshall Kools holds an MS in Engineering and Policy from Stanford and is co-founder and COO of Arzana.
COO at ArzanaYC X26
Intro paths
Marshall went through Y Combinator (Spring 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Tom Blomfield, Monzo and GoCardless co-founder; Y Combinator partner on leave and Anthropic compute-team member. — the partner who ran Arzana's batch and knows the company first-hand. YC profile ↗
In turn, Marshall can intro founders to Arzana's investors below.
Arzana's investors · 13
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Co-founders at Arzana
Frequently asked questions
- Who is Marshall Kools?
- Marshall Kools holds an MS in Engineering and Policy from Stanford and is co-founder and COO of Arzana.
- Where does Marshall Kools work?
- Marshall Kools is COO of Arzana.
- What companies did Marshall Kools found?
- Marshall Kools founded Arzana.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Arzana'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