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About
Joel Tomas Pimentel studied rocket science at Imperial College London and Stanford University and is building financial technology products.
CTO at SelfinYC F25
Intro paths
Joel went through Y Combinator (Fall 2025) — 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 Selfin's batch and knows the company first-hand. YC profile ↗
In turn, Joel can intro founders to Selfin's investors below.
Selfin's investors · 2
Co-founders at Selfin
Investments
Investor
Per curated public sources.
Frequently asked questions
- Who is Joel Tomas Pimentel?
- Joel Tomas Pimentel studied rocket science at Imperial College London and Stanford University and is building financial technology products.
- Where does Joel Tomas Pimentel work?
- Joel Tomas Pimentel is CTO of Selfin.
- What companies did Joel Tomas Pimentel found?
- Joel Tomas Pimentel founded Selfin.
- What companies has Joel Tomas Pimentel invested in?
- Investments tracked here include Sparkles.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
Stanford University mafia2,290
Also came through, then founded or led a company.
Imperial College London mafia463
Also came through, then founded or led a company.
National University of Singapore mafia230
Also came through, then founded or led a company.
Universidad Nacional de Educación a Distancia - U.N.E.D. mafia16
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Selfin'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