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Peter Greczner

Founder

Founder at Affinity

New York, New York, United States

FoundedAffinity · YC

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About

Peter Greczner is CTO at Affinity. He has spent nearly 15 years working with early-stage companies in AdTech, FinTech, and Crypto, and was a founding engineer at Bread, where he led the engineering team prior to its $500M acquisition.

Founder at AffinityYC S23

Intro paths

YC

Peter went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Nicolas Dessaigne, General Partner at Y Combinator — the partner who ran Affinity's batch and knows the company first-hand. YC profile ↗

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In turn, Peter can intro founders to Affinity's investors below.

Affinity's investors · 17

8VCAustin · $500K – $50M checks · since 2026Advance Venture PartnersSan Francisco · $10M – $25M checks · since 2026Avid VenturesNew York City · $500K – $8M checksBessemer Venture PartnersSan Francisco · $50K – $100M checksClocktower VenturesSanta Monica · $100K – $20M checksCRCM VenturesSan Francisco · $100K – $5M checksGreat Oaks Venture CapitalNew York · $50K – $500K checksHatcher+SingaporeMassMutual VenturesSpringfield · $500K – $5M checks · since 2026MeasuredBirminghamMenlo VenturesSan Francisco · $1M – $20M checks · since 2026Pear VCSan Francisco · $150K – $4M checksRenew CapitalDenverStonksSan FranciscoSway VenturesNewport BeachTeamworthy VenturesNew YorkY CombinatorSan Francisco · $500K checks · since 2023

Co-founders at Affinity

FRFaraz Rana
Faraz RanaFounder
RZ
Ray ZhouFounder
SG
Shubham GoelFounder

Frequently asked questions

Who is Peter Greczner?
Peter Greczner is CTO at Affinity. He has spent nearly 15 years working with early-stage companies in AdTech, FinTech, and Crypto, and was a founding engineer at Bread, where he led the engineering team prior to its $500M acquisition.
Where does Peter Greczner work?
Peter Greczner is Founder of Affinity.
What companies did Peter Greczner found?
Peter Greczner founded Affinity.

Founder mafias

About this profile. Compiled from public sources — Affinity'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