About
Jae Choi is a co-founder at Sponge and previously worked on crypto initiatives at Stripe.
Founder at SpongeYC W26
Intro paths
YC
Jae went through Y Combinator (Winter 2026) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Brad Flora, General Partner at Y Combinator — the partner who ran Sponge's batch and knows the company first-hand. YC profile ↗
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In turn, Jae can intro founders to Sponge's investors below.
Sponge's investors · 2
Co-founders at Sponge
EZ
Eric ZhangFounder
RL
Rishab LuthraFounder