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About
Co-founder of tash, a brokerage-style investment platform for trading graded trading cards held in registered vehicles with vaulted custody. He previously worked at UBS Global Markets and Seso, and studied Economics and Data Science at UC Berkeley.
CTO at tashYC S26
Intro paths
Nathan went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Jared Friedman, YC Group Partner — the partner who ran tash's batch and knows the company first-hand. YC profile ↗
In turn, Nathan can intro founders to tash's investors below.
tash's investors · 9
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Co-founders at tash
Frequently asked questions
- Who is Nathan Borshell?
- Co-founder of tash, a brokerage-style investment platform for trading graded trading cards held in registered vehicles with vaulted custody. He previously worked at UBS Global Markets and Seso, and studied Economics and Data Science at UC Berkeley.
- Where does Nathan Borshell work?
- Nathan Borshell is CTO of tash.
- What companies did Nathan Borshell found?
- Nathan Borshell founded tash.
Founder mafias
Y Combinator mafia10,638
Also came through, then founded or led a company.
University of California, Berkeley mafia1,346
Also came through, then founded or led a company.
Barclays mafia160
Also came through, then founded or led a company.
UBS mafia112
Also came through, then founded or led a company.
About this profile. Compiled from public sources — tash'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