Founder Directory
Built by Keitoto
Founders90
Known for these resultsRole21%Role is parsed from founder titles in yc.db. Known for 21% 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-company2%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 2% of these rows have at least one match.School48%School is matched from bios, case-sensitive for acronyms. 48% of these rows have at least one match.
- Emily Colman@emilyrcolmanFounder · RonanRx Inc.S26Healthcare · San Francisco
- Lloyd Armbrust@larmbrustFounder/CEO · RonanRx Inc.S26Healthcare · San Francisco
- Jeff LiuFounder/CEO · FinalDoseX26Healthcare · London
- Li-Yao HuangFounder · FinalDoseX26Healthcare · London
- Steven LinFounder · FinalDoseX26Healthcare · London
- Gabriel Ocana Santero@OcanaSanteroFounder/CEO · Exin TherapeuticsW25Healthcare · San Francisco
- Marko Tvrdic@markotvrdicFounder/COO · Exin TherapeuticsW25Healthcare · San Francisco
- Adam WinnifrithFounder/CEO · Evolvere BioSciencesS24Healthcare · Oxford
- Piotr JedryszekFounder/CTO · Evolvere BioSciencesS24Healthcare · Oxford
- Weronika SlesakFounder · Evolvere BioSciencesS24Healthcare · Oxford
- Alexander Haddad@AF_HaddadFounder · Kopra BioS24Healthcare · San Francisco
- Evita WeagelFounder/CEO · Eris BiotechW24Healthcare · Lehi
- Rachel GarlickFounder · Eris BiotechW24Healthcare · Lehi
- Ashwin JainarayananFounder · Granza BioW24Healthcare · San Francisco
- Ashwin Nandakumar@Menon_AshwinFounder/CEO · Granza BioW24Healthcare · San Francisco
- Chris CarlsonFounder · ParcelBioW24Healthcare · San Francisco
- David WeinbergFounder/CEO · ParcelBioW24Healthcare · San Francisco
- Elliot TagueFounder · SynsoryBioW24Healthcare · Boston
- Nathan TagueFounder · SynsoryBioW24Healthcare · Boston
- Parsa Modareszadeh@parsamodaresFounder/COO · Velorum TherapeuticsW24Healthcare · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Emily ColmanRonanRx Inc.FounderSummer 2026HealthcareSan Francisco, United States5https://x.com/emilyrcolmanLloyd ArmbrustRonanRx Inc.2× YCFounder/CEOSummer 2026HealthcareSan Francisco, United States5https://x.com/larmbrustJeff LiuFinalDoseFounder/CEOSpring 2026HealthcareLondon, United Kingdom5—Li-Yao HuangFinalDoseFounderSpring 2026HealthcareLondon, United Kingdom5—Steven LinFinalDoseFounderSpring 2026HealthcareLondon, United Kingdom5—Gabriel Ocana SanteroExin TherapeuticsFounder/CEOWinter 2025HealthcareSan Francisco, United States9https://x.com/OcanaSanteroMarko TvrdicExin TherapeuticsFounder/COOWinter 2025HealthcareSan Francisco, United States9https://x.com/markotvrdicAdam WinnifrithEvolvere BioSciencesFounder/CEOSummer 2024HealthcareOxford, United Kingdom3—Piotr JedryszekEvolvere BioSciencesFounder/CTOSummer 2024HealthcareOxford, United Kingdom3—Weronika SlesakEvolvere BioSciencesFounderSummer 2024HealthcareOxford, United Kingdom3—Alexander HaddadKopra BioFounderSummer 2024HealthcareSan Francisco, United States2https://x.com/AF_HaddadEvita WeagelEris BiotechFounder/CEOWinter 2024HealthcareLehi, United States2—Rachel GarlickEris BiotechFounderWinter 2024HealthcareLehi, United States2—Ashwin JainarayananGranza BioFounderWinter 2024HealthcareSan Francisco, United States8—Ashwin NandakumarGranza BioFounder/CEOWinter 2024HealthcareSan Francisco, United States8https://x.com/Menon_AshwinChris CarlsonParcelBioFounderWinter 2024HealthcareSan Francisco, United States6—David WeinbergParcelBioFounder/CEOWinter 2024HealthcareSan Francisco, United States6—Elliot TagueSynsoryBioFounderWinter 2024HealthcareBoston, United States2—Nathan TagueSynsoryBioFounderWinter 2024HealthcareBoston, United States2—Parsa ModareszadehVelorum TherapeuticsFounder/COOWinter 2024HealthcareSan Francisco, United States5https://x.com/parsamodares
Showing 1–20 of 90 founders
David Weinberg
Founder/CEO·ParcelBio
PRIMARY INFO
RoleFounder/CEO
Team size6
BatchWinter 2024
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
David is the co-founder and CEO of ParcelBio. He was previously VP of RNA Platform at Orbital Therapeutics / Circ Bio, where he led the development of a circular RNA therapeutics platform. Before that, he was Sr. Director of Molecular Research at Freenome, where he built the multiomics diagnostics platform that enabled a blood test for the early detection of cancer. David obtained his PhD from MIT, was a UCSF Faculty Fellow, and has been honored with Forbes ‘30 Under 30’ and an NIH DP5 Award.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
CredentialsForbes 30U30PhD
DisciplineResearcherKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
ParcelBioElevated mRNA for transformative medicines.
IndustryHealthcare
Websiteparcelbio.com/
Team size6
X—
LocationSan Francisco, United States
BatchWinter 2024
Co-foundersChris Carlson
