Founder Directory
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Founders50
Known for these resultsRole50%Role is parsed from founder titles in yc.db. Known for 50% 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.Bio98%Bio coverage: 98% 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-company36%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 36% of these rows have at least one match.School36%School is matched from bios, case-sensitive for acronyms. 36% of these rows have at least one match.
- David Khachaturov@davidobot_Founder/CTO · Egoist MachinesS26Consumer · San Francisco
- David Yang@djyang1Founder/CTO · MaingenS26Industrials · San Francisco
- David Lee@dleebuildsFounder · AndcoX26B2B · San Francisco
- David LomelinFounder/CTO · ArdenX26B2B · San Francisco
- David Korn@dav1dk0rnFounder/CTO · OntoraX26B2B · San Francisco
- David McDonough@David_l_mcd1Founder/COO · tday.comX26B2B · San Francisco
- Akash Pavan@akashpavanFounder/CEO · ChasiW26B2B · San Francisco
- David ElskampFounder/CEO · LexiusW26B2B · San Francisco
- Arvid E. Gollwitzer@arvidgollwitzerFounder/CTO · Anto BiosciencesF25Healthcare · San Francisco
- David de GruijlFounder/CEO · Anto BiosciencesF25Healthcare · San Francisco
- David Jin LiFounder/CTO · DenkiF25B2B · London
- David DayFounder/CTO · LunaBillF25Healthcare · San Francisco
- Suhail Parry@bitcoinbashaFounder/CEO · LunaBillF25Healthcare · San Francisco
- David Maulick@davidmaulickFounder/CEO · Scott AIF25B2B · New York
- David StrömbäckFounder/CTO · CrimsonX25B2B · London
- David Yu@1davidyu1Founder/CEO · HanjiX25B2B · San Francisco
- David ZhuFounder · PercivalX25B2B · San Francisco
- David Mlcoch@MlcochDavidFounder/CEO · AsteroidW25B2B · San Francisco
- Aditya SoodFounder/CTO · ContrarioW25B2B · San Francisco
- Arya Marwaha@arya_marwahaFounder/CEO · ContrarioW25B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
David KhachaturovEgoist MachinesFounder/CTOSummer 2026ConsumerSan Francisco, United States2https://x.com/davidobot_David YangMaingenFounder/CTOSummer 2026IndustrialsSan Francisco, United States2https://x.com/djyang1David LeeAndcoFounderSpring 2026B2BSan Francisco, United States3https://x.com/dleebuildsDavid LomelinArdenFounder/CTOSpring 2026B2BSan Francisco, United States2—David KornOntoraFounder/CTOSpring 2026B2BSan Francisco, United States3https://x.com/dav1dk0rnDavid McDonoughtday.comFounder/COOSpring 2026B2BSan Francisco, United States2https://x.com/David_l_mcd1Akash PavanChasiFounder/CEOWinter 2026B2BSan Francisco, United States2https://x.com/akashpavanDavid ElskampLexiusFounder/CEOWinter 2026B2BSan Francisco, United States3—Arvid E. GollwitzerAnto BiosciencesFounder/CTOFall 2025HealthcareSan Francisco, United States4https://x.com/arvidgollwitzerDavid de GruijlAnto BiosciencesFounder/CEOFall 2025HealthcareSan Francisco, United States4—David Jin LiDenkiFounder/CTOFall 2025B2BLondon, United Kingdom3—David DayLunaBillFounder/CTOFall 2025HealthcareSan Francisco, United States4—Suhail ParryLunaBillFounder/CEOFall 2025HealthcareSan Francisco, United States4https://x.com/bitcoinbashaDavid MaulickScott AIFounder/CEOFall 2025B2BNew York, United States3https://x.com/davidmaulickDavid StrömbäckCrimsonFounder/CTOSpring 2025B2BLondon, United Kingdom6—David YuHanjiFounder/CEOSpring 2025B2BSan Francisco, United States4https://x.com/1davidyu1David ZhuPercivalFounderSpring 2025B2BSan Francisco, United States3—David MlcochAsteroidFounder/CEOWinter 2025B2BSan Francisco, United States8https://x.com/MlcochDavidAditya SoodContrarioFounder/CTOWinter 2025B2BSan Francisco, United States20—Arya MarwahaContrarioFounder/CEOWinter 2025B2BSan Francisco, United States20https://x.com/arya_marwaha
Showing 1–20 of 50 founders
Cyrus Kelly
Founder/CEO·tday.com
PRIMARY INFO
RoleFounder/CEO
Team size2
BatchSpring 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Co-Founder and CEO of tday. 20 y/o. Began taking university courses at 13 and was admitted to University of Adelaide's most selective computer science degree at 15, while still in high school, completing it at 18. Mentored 300+ student founders as Adelaide University's Chief Student Entrepreneur. Before tday, built communities.one, a student club platform with integrated banking which the University of Adelaide invested in. Dropped out of an MBA to build tday full-time in SF.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
No notable employer or school mentioned in the bio.
CredentialsMBADropout / Thiel
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
tday.comAI that turns your product into on-brand marketing content
Co-foundersDavid McDonough@David_l_mcd1
