Founder Directory
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Founders498
Known for these resultsRole45%Role is parsed from founder titles in yc.db. Known for 45% 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.Bio83%Bio coverage: 83% 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-company26%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 26% of these rows have at least one match.School25%School is matched from bios, case-sensitive for acronyms. 25% of these rows have at least one match.
- Joohyun (CJ) ChaFounder/CEO · Dawn IndustriesS26Industrials · San Francisco
- Robin LeeFounder/CTO · Dawn IndustriesS26Industrials · San Francisco
- Alexander HalpernFounder · DreamS26B2B · San Francisco
- Ryland Birchmeier@rylandbirchFounder · DreamS26B2B · San Francisco
- Nikos Dritsakos@nikos1Founder/CEO · GlenS26B2B · San Francisco
- Karan RainaFounder/CTO · HyperProbeS26B2B · San Francisco
- Shailendra SinghFounder/CEO · HyperProbeS26B2B · San Francisco
- Claire Mao@clairemao78Founder/CEO · InstanceS26B2B · San Francisco
- Lucy Cai@LucyCai9Founder/CTO · InstanceS26B2B · San Francisco
- Shelden ShiFounder/CTO · OpenTagS26B2B · San Francisco
- Tony Kam@kamikariatFounder/CEO · OpenTagS26B2B · San Francisco
- Andrey GizdovFounder/CEO · OpenVectorS26B2B · San Francisco
- Vishal Urlam@vishalurlamFounder · OpenVectorS26B2B · San Francisco
- Anish Mariathasan@mariathasanishFounder/CEO · OsseusS26B2B
- Ayush PatelFounder/CTO · OsseusS26B2B
- Emily Colman@emilyrcolmanFounder · RonanRx Inc.S26Healthcare · San Francisco
- Lloyd Armbrust@larmbrustFounder/CEO · RonanRx Inc.S26Healthcare · San Francisco
- Ahmad IbrahimFounder/CTO · TryNearbyS26B2B · Los Angeles
- Obaida AlbaroudiFounder/COO · TryNearbyS26B2B · Los Angeles
- Yousef Abdelfattah@fazeapexFounder/CEO · TryNearbyS26B2B · Los Angeles
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Joohyun (CJ) ChaDawn IndustriesFounder/CEOSummer 2026IndustrialsSan Francisco, United States2—Robin LeeDawn IndustriesFounder/CTOSummer 2026IndustrialsSan Francisco, United States2—Alexander HalpernDreamFounderSummer 2026B2BSan Francisco, United States2—Ryland BirchmeierDreamFounderSummer 2026B2BSan Francisco, United States2https://x.com/rylandbirchNikos DritsakosGlenFounder/CEOSummer 2026B2BSan Francisco, United States1https://x.com/nikos1Karan RainaHyperProbeFounder/CTOSummer 2026B2BSan Francisco, United States8—Shailendra SinghHyperProbeFounder/CEOSummer 2026B2BSan Francisco, United States8—Claire MaoInstanceFounder/CEOSummer 2026B2BSan Francisco, United States2https://x.com/clairemao78Lucy CaiInstanceFounder/CTOSummer 2026B2BSan Francisco, United States2https://x.com/LucyCai9Shelden ShiOpenTag2× YCFounder/CTOSummer 2026B2BSan Francisco, United States3—Tony KamOpenTag2× YCFounder/CEOSummer 2026B2BSan Francisco, United States3https://x.com/kamikariatAndrey GizdovOpenVectorFounder/CEOSummer 2026B2BSan Francisco, United States4—Vishal UrlamOpenVectorFounderSummer 2026B2BSan Francisco, United States4https://x.com/vishalurlamAnish MariathasanOsseusFounder/CEOSummer 2026B2BUnknown2https://x.com/mariathasanishAyush PatelOsseusFounder/CTOSummer 2026B2BUnknown2—Emily ColmanRonanRx Inc.FounderSummer 2026HealthcareSan Francisco, United States5https://x.com/emilyrcolmanLloyd ArmbrustRonanRx Inc.2× YCFounder/CEOSummer 2026HealthcareSan Francisco, United States5https://x.com/larmbrustAhmad IbrahimTryNearbyFounder/CTOSummer 2026B2BLos Angeles, United States5—Obaida AlbaroudiTryNearbyFounder/COOSummer 2026B2BLos Angeles, United States5—Yousef AbdelfattahTryNearbyFounder/CEOSummer 2026B2BLos Angeles, United States5https://x.com/fazeapex
Showing 1–20 of 498 founders
Joohyun (CJ) Cha
Founder/CEO·Dawn Industries
PRIMARY INFO
RoleFounder/CEO
Team size2
BatchSummer 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Founder at Dawn Industries (YC S26). Previously co-founder & CTO at Zipper, a creative collage social media backed by Unnoted Ventures (acquired by MetaZone). ML engineer at Avalo analyzing genomic data for crop development. Studied CS at Brown.
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
Exit mentioned in bio
COMPANY CONTEXT
Dawn Industries
Automatic Diagnosis & Fix for Industrial Automation Cells
IndustryIndustrials
Websitedawnxr.com
Team size2
X—
LocationSan Francisco, United States
BatchSummer 2026
Co-foundersRobin Lee
