Founder Directory
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Founders54
Known for these resultsRole41%Role is parsed from founder titles in yc.db. Known for 41% of these rows — the rest have no title at all, mostly 2019–2023. Those rows stay in the result and are counted as Unknown, never as No.Bio85%Bio coverage: 85% of these founders have a bio on their YC profile. Every bio-derived facet (ex-company, school, credentials, discipline) is Unknown for the rest.Ex-company50%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 50% of these rows have at least one match.School22%School is matched from bios, case-sensitive for acronyms. 22% of these rows have at least one match.
- Sherwood Callaway@shcallawayFounder/CEO · SazabiX26B2B · San Francisco
- Michael Gonzalez@michaelatpalusFounder/CTO · Palus FinanceW26Fintech
- Sam Lushtak@Sam_LushtakFounder/CEO · Palus FinanceW26Fintech
- Sam Kaplan@samrkaplanFounder/CEO · RemixW26Consumer · San Francisco
- Thomas Cesare-HerriauFounder/CTO · SpotPayW26Fintech · San Francisco
- Nishant HoodaFounder/CTO · DocketX25B2B · San Francisco
- Sukhjit Singh@ssinghh14Founder/CEO · Sennu AIW25B2B · San Francisco
- Benjamin PaikFounder/CPO · Afternoon.coF24B2B · New York
- Gokul Kumarresen@GokulKumarresenFounder/CTO · Asha HealthF24Healthcare · New York
- David (Wenbo) Zhu@david_w_zhuFounder · Hey ReviaS24B2B · San Francisco
- Chris Le@chriiisleFounder · PaxS24B2B · San Francisco
- Penny ChenFounder/CEO · PaxS24B2B · San Francisco
- Anuj Saigal@anujsaigalFounder · SparkW24B2B
- Julia Wu@thejuliawuFounder/CEO · SparkW24B2B
- Joseph ZhouFounder · AccendS23Fintech
- Pranjal Daga@pranjaldaga1Founder · AccendS23Fintech
- Yutong PeiFounder · AccendS23Fintech
- Brandon Ballinger@bballingerFounder · Empirical HealthS23Healthcare · New York
- Kushal Byatnal@kushalbyatnalFounder · ExtendW23B2B · New York
- Matt DuVall@mduvall_Founder · NumeralW23B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Sherwood CallawaySazabi2× YCFounder/CEOSpring 2026B2BSan Francisco, United States10https://x.com/shcallawayMichael GonzalezPalus FinanceFounder/CTOWinter 2026FintechUnknown2https://x.com/michaelatpalusSam LushtakPalus FinanceFounder/CEOWinter 2026FintechUnknown2https://x.com/Sam_LushtakSam KaplanRemixFounder/CEOWinter 2026ConsumerSan Francisco, United States0https://x.com/samrkaplanThomas Cesare-HerriauSpotPayFounder/CTOWinter 2026FintechSan Francisco, United States2—Nishant HoodaDocketFounder/CTOSpring 2025B2BSan Francisco, United States2—Sukhjit SinghSennu AIFounder/CEOWinter 2025B2BSan Francisco, United States2https://x.com/ssinghh14Benjamin PaikAfternoon.coFounder/CPOFall 2024B2BNew York, United States4—Gokul KumarresenAsha HealthFounder/CTOFall 2024HealthcareNew York, United States9https://x.com/GokulKumarresenDavid (Wenbo) ZhuHey ReviaFounderSummer 2024B2BSan Francisco, United States4https://x.com/david_w_zhuChris LePaxFounderSummer 2024B2BSan Francisco, United States10https://x.com/chriiislePenny ChenPaxFounder/CEOSummer 2024B2BSan Francisco, United States10—Anuj SaigalSpark2× YCFounderWinter 2024B2BUnknown5https://x.com/anujsaigalJulia WuSparkFounder/CEOWinter 2024B2BUnknown5https://x.com/thejuliawuJoseph ZhouAccendFounderSummer 2023FintechUnknown18—Pranjal DagaAccendFounderSummer 2023FintechUnknown18https://x.com/pranjaldaga1Yutong PeiAccendFounderSummer 2023FintechUnknown18—Brandon BallingerEmpirical HealthFounderSummer 2023HealthcareNew York, United States4https://x.com/bballingerKushal ByatnalExtendFounderWinter 2023B2BNew York, United States25https://x.com/kushalbyatnalMatt DuVallNumeralFounderWinter 2023B2BSan Francisco, United States110https://x.com/mduvall_
Showing 1–20 of 54 founders
Justin Ko
Founder·Opkit
PRIMARY INFO
RoleFounder· not in title
Team size—
BatchSummer 2021
LocationNew York, United States
Company statusInactive
StageEarly
BIO
Former early employee at Brex on Growth, Card, and Cash engineering teams. Before that, co-founder of SpeakGenius, an English learning tool. Studied entrepreneurship at the University of Southern California.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
OpkitAI phone calls for the US healthcare industry
Co-foundersSherwood Callaway@shcallaway
