Founder Directory
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Founders16
Known for these resultsRole56%Role is parsed from founder titles in yc.db. Known for 56% 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.Bio88%Bio coverage: 88% 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-company6%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 6% 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.
- Emily Colman@emilyrcolmanFounder · RonanRx Inc.S26Healthcare · San Francisco
- Lloyd Armbrust@larmbrustFounder/CEO · RonanRx Inc.S26Healthcare · San Francisco
- Joe Gonzalez@joegonzalez0886Founder/COO · Vernius Systems, Inc.S26Industrials · San Francisco
- Peter Volnov@p_volnovFounder/CEO · HEVN, incX26Fintech · San Francisco
- Cayden Liao@Cayden_LiaoFounder/CTO · Veria LabsF25B2B · San Francisco
- Brontë KolarFounder/CEO · Zeon SystemsX25Industrials · San Francisco
- Tahir D'Mello@TahirMelloFounder/CTO · Zeon SystemsX25Industrials · San Francisco
- Dhruv MangtaniFounder · Notebook LabsS22B2B · San Francisco
- Nathaniel Masfen-Yan@natrhmyFounder · Notebook LabsS22B2B · San Francisco
- Solal AfotaFounder · Notebook LabsS22B2B · San Francisco
- Jayme Hoffman@jaymehoffmanFounder/CEO · Launcher LabsW21Consumer · Austin
- Edrick GuanFounder · MesonW18Consumer · Singapore
- Xin SunFounder · MesonW18Consumer · Singapore
- Zehao LiFounder · MesonW18Consumer · Singapore
- Nadav HollanderFounder/Project Lead · Dharma LabsS17Fintech · San Francisco
- Juan Benet@juanbenetFounder/CEO, Engineer · Protocol LabsS14B2B · 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/larmbrustJoe GonzalezVernius Systems, Inc.Founder/COOSummer 2026IndustrialsSan Francisco, United States3https://x.com/joegonzalez0886Peter VolnovHEVN, incFounder/CEOSpring 2026FintechSan Francisco, United States8https://x.com/p_volnovCayden LiaoVeria LabsFounder/CTOFall 2025B2BSan Francisco, United States3https://x.com/Cayden_LiaoBrontë KolarZeon SystemsFounder/CEOSpring 2025IndustrialsSan Francisco, United States5—Tahir D'MelloZeon SystemsFounder/CTOSpring 2025IndustrialsSan Francisco, United States5https://x.com/TahirMelloDhruv MangtaniNotebook LabsFounderSummer 2022B2BSan Francisco, United States3—Nathaniel Masfen-YanNotebook LabsFounderSummer 2022B2BSan Francisco, United States3https://x.com/natrhmySolal AfotaNotebook LabsFounderSummer 2022B2BSan Francisco, United States3—Jayme HoffmanLauncher LabsFounder/CEOWinter 2021ConsumerAustin, United States4https://x.com/jaymehoffmanEdrick GuanMesonFounderWinter 2018ConsumerSingapore, Singapore10—Xin SunMesonFounderWinter 2018ConsumerSingapore, Singapore10—Zehao LiMesonFounderWinter 2018ConsumerSingapore, Singapore10—Nadav HollanderDharma LabsFounder/Project LeadSummer 2017FintechSan Francisco, United States14—Juan BenetProtocol LabsFounder/CEO, EngineerSummer 2014B2BSan Francisco, United States130https://x.com/juanbenet
Showing 1–16 of 16 founders
Lloyd Armbrust
Founder/CEO·RonanRx Inc.
PRIMARY INFO
RoleFounder/CEO
Team size5
BatchSummer 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
2x YC founder. 3 Exits. 6 Kids. Built a $50M manufacturing business. Now building RonanRX. We use AI to personalize peptides and GLP1s like Ozempic to your biology. By combining labs, wearables, medical history, treatment response, and the latest research, we continuously personalize your treatment as your body changes. Peptides are like Claude Code for your body. Your biology is the prompt. Oldest founder in S26, raising six kids outside Austin, Texas.
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.
Credentialsnone mentioned
DisciplineResearcherKeyword match from the bio text, not a classifier.
TRACK RECORD
2× YC founder
- W10OwnLocalActive
- S26RonanRx Inc.Active · this entry
COMPANY CONTEXT
RonanRx Inc.We use AI to personalize peptides to your biology
IndustryHealthcare
Websiteronanrx.com/
Team size5
X—
LocationSan Francisco, United States
BatchSummer 2026
Co-foundersEmily Colman@emilyrcolman
