About
Aaron Zelinger has spent six years at Palantir and two years at Arena, where he worked on data analysis and intelligence tools. He is now building law enforcement technology at Closure.
Co-Founder at ClosureYC W25
Intro paths
Aaron went through Y Combinator (Winter 2025) β 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. β the partner who ran Closure's batch and knows the company first-hand. YC profile β
In turn, Aaron can intro founders to Closure's investors below.
Closure's investors Β· 6
Co-founders at Closure
Experience
- ClosureCo-Founder & CEOcurrent2024 β present
- ArenaChief of Staff & Head of Operations2022 β 2024
- Palantir TechnologiesBusiness Development & Operations Lead2016 β 2022
- Blumberg CapitalVenture Capital Associate2015 β 2016
- Stanford Center for International Security and Cooperation (CISAC)Research Assistant2014 β 2016Stanford, California, United States
- The Hoover Institution, Stanford UniversityResearch Assistant2013 β 2016Stanford, California, United States
- US Senate Committee on Homeland Security & Governmental AffairsCommittee Intern2013Washington DC-Baltimore Area
Frequently asked questions
- Who is Aaron Zelinger?
- Aaron Zelinger has spent six years at Palantir and two years at Arena, where he worked on data analysis and intelligence tools. He is now building law enforcement technology at Closure.
- Where does Aaron Zelinger work?
- Aaron Zelinger is Co-Founder of Closure.
- What companies did Aaron Zelinger found?
- Aaron Zelinger founded Closure.
- Where did Aaron Zelinger go to school?
- Aaron Zelinger studied at Stanford University (Bachelor of Science - BS, Symbolic Systems).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
+ 8,766 more
Stanford University mafia903
Also came through, then founded or led a company.
+ 896 more
Blumberg Capital mafia3
Also came through, then founded or led a company.
Same school
Also attended Stanford University2,000
+ 1,994 more
Shared employers
Also worked at Closure1
Also worked at Arena8
+ 2 more
Also worked at Palantir Technologies220
+ 214 more
Also worked at Blumberg Capital38
+ 32 more




























