Sam O'Keefe
FounderFounder at Flex · Founder at MicroEval
San Francisco, California, United States
FoundedFlex · YCMicroEval · YC
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About
Sam O'Keefe previously led product at the fintech company Unit21, served as an entrepreneur-in-residence at Google's Area120, headed Google's startup programs globally, and worked as an editor at TechCrunch.
Likely emails· guessed from name + firm domain, not firm-published
- s•••@withflex.comreveal90% confident
- s•••@withflex.comreveal75% confident
Founder at FlexYC S23
Intro paths
Sam went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Pete Koomen, General Partner at Y Combinator — the partner who ran Flex's batch and knows the company first-hand. YC profile ↗
In turn, Sam can intro founders to Flex's investors below.
Flex's investors · 30
Co-founders at Flex

Founder at MicroEvalYC S12
Intro paths
Sam went through Y Combinator (Summer 2012) — any YC alum in your network can reach them through the YC community.
In turn, Sam can intro founders to MicroEval's investors below.
MicroEval's investors · 1
Co-founders at MicroEval


Experience
- ECFCBoard Membercurrent2025 — present
- FlexCo-Founder & CEOcurrent2023 — presentSan Francisco Bay Area
- Unit21Product Lead2022 — 2023San Francisco, California, United States
- GoogleOperating Partner, Gradient Ventures2021 — 2022San Francisco Bay Area
- GooglePM/GM, Area 1202020 — 2021
- GoogleGlobal Head of Startup Programs, Google Cloud2017 — 2020
- GoogleChief of Staff, Google Cloud2017
- Massachusetts Institute of Technology (MIT)Board of Trustees2014 — 2019Cambridge, MA
- TechCrunchDirector of Special Projects2016San Francisco Bay Area
- TechCrunchEditor, Startup Battlefield2013 — 2015San Francisco Bay Area
- AngelHackHead of Global Sales and Partnerships2013San Francisco Bay Area
- MicroEval (YC S12)Founder2012 — 2013Palo Alto, CA
- Singapore University of Technology and Design (SUTD)Program Manager, MIT-Singapore Collaboration2010 — 2012Cambridge, MA
Skills & more
+2 more
JavaScriptSQLFrom Sam's professional profile.
Frequently asked questions
- Who is Sam O'Keefe?
- Sam O'Keefe previously led product at the fintech company Unit21, served as an entrepreneur-in-residence at Google's Area120, headed Google's startup programs globally, and worked as an editor at TechCrunch.
- Where does Sam O'Keefe work?
- Sam O'Keefe is Founder of Flex and Founder at MicroEval.
- What companies did Sam O'Keefe found?
- Sam O'Keefe founded Flex, MicroEval.
- Where did Sam O'Keefe go to school?
- Sam O'Keefe studied at Massachusetts Institute of Technology (Dual Master of Science (M.S.), Civil and Environmental Engineering); Massachusetts Institute of Technology (Bachelor of Science (B.S.), Civil and Environmental Engineering); Y Combinator.
Founder mafias
Y Combinator mafia10,619
Also came through, then founded or led a company.
Google mafia1,705
Also came through, then founded or led a company.
Massachusetts Institute of Technology mafia1,481
Also came through, then founded or led a company.
Unit 21 mafia5
Also came through, then founded or led a company.
Same school
Also attended Massachusetts Institute of Technology2,000
+ 1,994 more
Also attended Y Combinator2,000
+ 1,994 more
Shared employers
Also worked at Unit218
+ 2 more
Also worked at Google2,000
+ 1,994 more
Also worked at Massachusetts Institute of Technology (MIT)941
+ 935 more
Also worked at AngelHack11
+ 5 more














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