Founder Directory
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Founders22
Known for these resultsRole23%Role is parsed from founder titles in yc.db. Known for 23% 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.Bio77%Bio coverage: 77% 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-company0%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 0% of these rows have at least one match.School41%School is matched from bios, case-sensitive for acronyms. 41% of these rows have at least one match.
- Jeff LiuFounder/CEO · FinalDoseX26Healthcare · London
- Li-Yao HuangFounder · FinalDoseX26Healthcare · London
- Steven LinFounder · FinalDoseX26Healthcare · London
- Noah AuerhahnFounder/CEO · Uncommon TherapeuticsW25Healthcare · San Francisco
- Ryan LimFounder · Uncommon TherapeuticsW25Healthcare · San Francisco
- Alexander Haddad@AF_HaddadFounder · Kopra BioS24Healthcare · San Francisco
- Chris CarlsonFounder · ParcelBioW24Healthcare · San Francisco
- David WeinbergFounder/CEO · ParcelBioW24Healthcare · San Francisco
- David WhiteFounder · Modulari-TW23Healthcare · Montreal
- Stephanie MokFounder · Modulari-TW23Healthcare · Montreal
- Mason ChilmonczykFounder · Andson BiotechW22Healthcare · Atlanta
- David Delbourgo@DavidDelBourgoFounder · WhiteLab GenomicsW22Healthcare · Paris
- Julien CottineauFounder · WhiteLab GenomicsW22Healthcare · Paris
- Albert KwokFounder · Nuntius TherapeuticsW21Healthcare · London
- Benita NagelFounder · Nuntius TherapeuticsW21Healthcare · London
- Lexi Rovner@lexrovnerFounder/CEO · 64x BioS18Healthcare · San Francisco
- Omid KarkoutiFounder · Perception BiosystemsS18Healthcare · San Francisco
- Glenn MarkovFounder · Rejuvenation Technologies Inc.S18Healthcare · San Francisco
- John RamunasFounder · Rejuvenation Technologies Inc.S18Healthcare · San Francisco
- Anna Perdrix RosellFounder · Sixfold BioscienceW18Healthcare · London
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Jeff LiuFinalDoseFounder/CEOSpring 2026HealthcareLondon, United Kingdom5—Li-Yao HuangFinalDoseFounderSpring 2026HealthcareLondon, United Kingdom5—Steven LinFinalDoseFounderSpring 2026HealthcareLondon, United Kingdom5—Noah AuerhahnUncommon TherapeuticsFounder/CEOWinter 2025HealthcareSan Francisco, United States2—Ryan LimUncommon TherapeuticsFounderWinter 2025HealthcareSan Francisco, United States2—Alexander HaddadKopra BioFounderSummer 2024HealthcareSan Francisco, United States2https://x.com/AF_HaddadChris CarlsonParcelBioFounderWinter 2024HealthcareSan Francisco, United States6—David WeinbergParcelBioFounder/CEOWinter 2024HealthcareSan Francisco, United States6—David WhiteModulari-TFounderWinter 2023HealthcareMontreal, Canada4—Stephanie MokModulari-TFounderWinter 2023HealthcareMontreal, Canada4—Mason ChilmonczykAndson BiotechFounderWinter 2022HealthcareAtlanta, United States4—David DelbourgoWhiteLab GenomicsFounderWinter 2022HealthcareParis, France40https://x.com/DavidDelBourgoJulien CottineauWhiteLab GenomicsFounderWinter 2022HealthcareParis, France40—Albert KwokNuntius TherapeuticsFounderWinter 2021HealthcareLondon, United Kingdom2—Benita NagelNuntius TherapeuticsFounderWinter 2021HealthcareLondon, United Kingdom2—Lexi Rovner64x BioFounder/CEOSummer 2018HealthcareSan Francisco, United States25https://x.com/lexrovnerOmid KarkoutiPerception BiosystemsFounderSummer 2018HealthcareSan Francisco, United States2—Glenn MarkovRejuvenation Technologies Inc.FounderSummer 2018HealthcareSan Francisco, United States2—John RamunasRejuvenation Technologies Inc.FounderSummer 2018HealthcareSan Francisco, United States2—Anna Perdrix RosellSixfold BioscienceFounderWinter 2018HealthcareLondon, United Kingdom27—
Showing 1–20 of 22 founders
Lexi Rovner
Founder/CEO·64x Bio
PRIMARY INFO
RoleFounder/CEO
Team size25
BatchSummer 2018
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Lexi Rovner, PhD is the CEO & co-founder of 64x Bio, a spinout of Harvard Medical School and the Wyss Institute. Lexi completed her PhD at Yale University and her postdoctoral work in George Church’s lab at Harvard Medical School, where she co-founded the company alongside George, Pam Silver, Jeff Way, and David Thompson. Lexi is a Y Combinator alum, a 2022 Endpoints 20 under 40 Next-Generation Biotech Leader, and a 2022 Bloomberg New Economy Catalyst Awardee.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
CredentialsPhD
DisciplineResearcherKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
64x BioEnabling next generation medicines. A comprehensive platform and…
