Founder Directory
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Founders53
Known for these resultsRole47%Role is parsed from founder titles in yc.db. Known for 47% 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.Bio89%Bio coverage: 89% 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-company38%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 38% of these rows have at least one match.School47%School is matched from bios, case-sensitive for acronyms. 47% of these rows have at least one match.
- David PastewkaFounder · MarkerS26B2B · San Francisco
- Richard BerwickFounder · MarkerS26B2B · San Francisco
- Will Drevno@WillDrevnoFounder · MarkerS26B2B · San Francisco
- Dan DanayFounder/CEO · Verdict MachineS26B2B · Tel Aviv
- Sean Grove@sgroveFounder/CEO · LinzumiX26B2B · San Francisco
- Sam RogersFounder/CEO · Brumby (Formerly GrazeMate)W26Industrials · Sydney
- Naman Ambavi@namanambaviFounder/CEO · OximyW26B2B · San Francisco
- Feroze Mohideen@FerozeMohideenFounder/CTO · RobbyW26B2B · New York
- Joseph Schwarzmann@JoeSchwarzmannFounder/COO · RobbyW26B2B · New York
- Vineet JammalamadakaFounder/CEO · RobbyW26B2B · New York
- Alexander Le Maitre@Alex_10200Founder/CEO · Seeing SystemsW26Industrials · London
- Matthew Le MaitreFounder/CTO · Seeing SystemsW26Industrials · London
- Gordy Sun@grdysunFounder/CEO · LakoniaF25Government · San Francisco
- Deokhaeng Lee@duckduckheroFounder · CharS25B2B · Seoul
- John Jeong@computelessFounder/CEO · CharS25B2B · Seoul
- Yujong Lee@yujongleeFounder · CharS25B2B · Seoul
- Ishaan Sehgal@IshSupFounder/CEO · OmnaraS25B2B · San Francisco
- Kartik Sarangmath@kartiksmathFounder/CTO · OmnaraS25B2B · San Francisco
- Kaushik Mahorker@kaushikm_Founder/CEO · WildcardW25B2B · San Francisco
- Ben Collins@BenjaminT007Founder/CEO · WozW25B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
David PastewkaMarker2× YCFounderSummer 2026B2BSan Francisco, United States3—Richard BerwickMarker2× YCFounderSummer 2026B2BSan Francisco, United States3—Will DrevnoMarker2× YCFounderSummer 2026B2BSan Francisco, United States3https://x.com/WillDrevnoDan DanayVerdict Machine2× YCFounder/CEOSummer 2026B2BTel Aviv, Israel4—Sean GroveLinzumi3× YCFounder/CEOSpring 2026B2BSan Francisco, United States3https://x.com/sgroveSam RogersBrumby (Formerly GrazeMate)Founder/CEOWinter 2026IndustrialsSydney, Australia3—Naman AmbaviOximyFounder/CEOWinter 2026B2BSan Francisco, United States8https://x.com/namanambaviFeroze MohideenRobbyFounder/CTOWinter 2026B2BNew York, United States3https://x.com/FerozeMohideenJoseph SchwarzmannRobbyFounder/COOWinter 2026B2BNew York, United States3https://x.com/JoeSchwarzmannVineet JammalamadakaRobbyFounder/CEOWinter 2026B2BNew York, United States3—Alexander Le MaitreSeeing SystemsFounder/CEOWinter 2026IndustrialsLondon, United Kingdom2https://x.com/Alex_10200Matthew Le MaitreSeeing SystemsFounder/CTOWinter 2026IndustrialsLondon, United Kingdom2—Gordy SunLakoniaFounder/CEOFall 2025GovernmentSan Francisco, United States2https://x.com/grdysunDeokhaeng LeeCharFounderSummer 2025B2BSeoul, South Korea2https://x.com/duckduckheroJohn JeongCharFounder/CEOSummer 2025B2BSeoul, South Korea2https://x.com/computelessYujong LeeCharFounderSummer 2025B2BSeoul, South Korea2https://x.com/yujongleeIshaan SehgalOmnaraFounder/CEOSummer 2025B2BSan Francisco, United States4https://x.com/IshSupKartik SarangmathOmnaraFounder/CTOSummer 2025B2BSan Francisco, United States4https://x.com/kartiksmathKaushik MahorkerWildcardFounder/CEOWinter 2025B2BSan Francisco, United States0https://x.com/kaushikm_Ben CollinsWozFounder/CEOWinter 2025B2BSan Francisco, United States8https://x.com/BenjaminT007
Showing 1–20 of 53 founders
Sean Grove
Founder/CEO·Zenbox
PRIMARY INFO
RoleFounder/CEO
Team size2
BatchSummer 2011
LocationSan Francisco, United States
Company statusInactive
StageEarly
BIO
Sean Grove builds systems that turn human intent into reliable software. At OpenAI he spent years in post‑training and alignment reasoning, helping develop model‑spec infrastructure and deliberative‑alignment techniques. He founded OneGraph (acquired by Netlify), was Principal Architect at Netlify, and now builds Linzumi. Sean enjoys writing about himself in the third person. Sean hungry. Sean work hard.
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
3× YC founderVerified prior exitExit mentioned in bio
- S11ZenboxInactive · this entry
- S18OneGraphAcquired
- X26LinzumiActive
COMPANY CONTEXT
ZenboxBrings dozens of SaaS's (Mailchimp, Stripe, Shopify, Salesforce,…
Co-foundersKev Zettler@kevzettler
Also founded · 2 more YC companies
LinzumiActiveSpring 2026Team chat to command all your company's coding agents
B2BSan Francisco, United States3Open this entry
OneGraphAcquiredSummer 2018GraphQL API to connect all of the internet's APIs. Join us at Netlify!
B2BSan Francisco, United States2Open this entry
