3x founder

rishi serumadar

building... | a16z sr

Founder

Margin· Speedrun 005🇺🇸 United States

2025Founder· Stealth Startup

Founder · since 2018

Company

Stealth Startup

Role

founder

current

Stage

—

no public source

Raised

—

no public source

Based

—

Founder / co-founder — the company's markEmployee / research role

Profile coverage5 of 7 · missing posts, contact

Margin

The world's first AI powered credit card.

Experience

Career

did sneaker bots at 17 to help resellers automate purchasing at scale, $XM ARR, $XXM+ gmv. also did a bnpl and a realtime credit bureau.