Fundraising Fox
Eric Zhang
FounderFounder at Sponge · Founder at Flotype
San Francisco Bay Area
FoundedFlotype · YCSponge · YC
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About
Eric Zhang is a co-founder of Sponge (YC W26) and previously worked on the crypto team at Stripe.
Founder at SpongeYC W26
Intro paths
Eric went through Y Combinator (Winter 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran Sponge's batch and knows the company first-hand. YC profile ↗
In turn, Eric can intro founders to Sponge's investors below.
Sponge's investors · 12
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Co-founders at Sponge
Founder at FlotypeYC W11
Intro paths
Eric went through Y Combinator (Winter 2011) — any YC alum in your network can reach them through the YC community.
In turn, Eric can intro founders to Flotype's investors below.
Flotype's investors · 6
Co-founders at Flotype
Frequently asked questions
- Who is Eric Zhang?
- Eric Zhang is a co-founder of Sponge (YC W26) and previously worked on the crypto team at Stripe.
- Where does Eric Zhang work?
- Eric Zhang is Founder of Flotype and Founder at Sponge.
- What companies did Eric Zhang found?
- Eric Zhang founded Flotype, Sponge.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
UC San Diego mafia312
Also came through, then founded or led a company.
Stripe mafia157
Also came through, then founded or led a company.
Lever mafia6
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Sponge'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