Founder Directory
Built by Keitoto
Founders122
Known for these resultsRole25%Role is parsed from founder titles in yc.db. Known for 25% 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.Bio74%Bio coverage: 74% 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.School30%School is matched from bios, case-sensitive for acronyms. 30% of these rows have at least one match.
- Asaph Kupferman@KupfermanAsaphFounder/CEO · FloraceneS26Healthcare · New York
- Jonah KayeFounder/CTO · FloraceneS26Healthcare · New York
- Kenneth Chan@kennychan256Founder · Nexa LabsS25Industrials · San Francisco
- Zarif Azher@ZarifAzherFounder/CEO · Nexa LabsS25Industrials · San Francisco
- Kevin BuiFounder · Selera MedicalW24Healthcare · San Francisco
- Stacie ArechavalaFounder · Selera MedicalW24Healthcare · San Francisco
- Kartik TiwariFounder · Andromeda SurgicalS23Healthcare · San Francisco
- Nick Damiano@nickdamian0Founder · Andromeda SurgicalS23Healthcare · San Francisco
- Benjamin Ades-AronFounder · MICSIS23Healthcare · New York
- Gregory LemberskiyFounder · MICSIS23Healthcare · New York
- Naxin WangFounder · Obento HealthS23Healthcare · San Francisco
- Eldrick MillaresFounder · Illuminant SurgicalS22Healthcare · Los Angeles
- James HuCo-Founder, Co-Chief Executive Officer · Illuminant SurgicalS22Healthcare · Los Angeles
- Buddha Chaudhuri@buddhachaudhuriFounder · KeylikaS22Healthcare · San Francisco
- Frederik CeyssensFounder · KeylikaS22Healthcare · San Francisco
- Alison LiddyFounder · Relevium MedicalS22Healthcare · Galway
- Adrien ChâtillonFounder · Actipulse NeuroscienceW22Healthcare · Mexico City
- Gabriel Villafuerte@neuro_gaboFounder · Actipulse NeuroscienceW22Healthcare · Mexico City
- Tyler MeltonFounder · Corveus MedicalW22Healthcare · Houston
- Roy Stillwell@stillwell_royFounder · NearWaveW22Healthcare · Austin
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Asaph KupfermanFloraceneFounder/CEOSummer 2026HealthcareNew York, United States2https://x.com/KupfermanAsaphJonah KayeFloraceneFounder/CTOSummer 2026HealthcareNew York, United States2—Kenneth ChanNexa LabsFounderSummer 2025IndustrialsSan Francisco, United States3https://x.com/kennychan256Zarif AzherNexa LabsFounder/CEOSummer 2025IndustrialsSan Francisco, United States3https://x.com/ZarifAzherKevin BuiSelera MedicalFounderWinter 2024HealthcareSan Francisco, United States2—Stacie ArechavalaSelera MedicalFounderWinter 2024HealthcareSan Francisco, United States2—Kartik TiwariAndromeda SurgicalFounderSummer 2023HealthcareSan Francisco, United States12—Nick DamianoAndromeda SurgicalFounderSummer 2023HealthcareSan Francisco, United States12https://x.com/nickdamian0Benjamin Ades-AronMICSIFounderSummer 2023HealthcareNew York, United States2—Gregory LemberskiyMICSIFounderSummer 2023HealthcareNew York, United States2—Naxin WangObento HealthFounderSummer 2023HealthcareSan Francisco, United States2—Eldrick MillaresIlluminant SurgicalFounderSummer 2022HealthcareLos Angeles, United States11—James HuIlluminant SurgicalCo-Founder, Co-Chief Executive OfficerSummer 2022HealthcareLos Angeles, United States11—Buddha ChaudhuriKeylikaFounderSummer 2022HealthcareSan Francisco, United States1https://x.com/buddhachaudhuriFrederik CeyssensKeylikaFounderSummer 2022HealthcareSan Francisco, United States1—Alison LiddyRelevium MedicalFounderSummer 2022HealthcareGalway, Ireland5—Adrien ChâtillonActipulse NeuroscienceFounderWinter 2022HealthcareMexico City, Mexico38—Gabriel VillafuerteActipulse NeuroscienceFounderWinter 2022HealthcareMexico City, Mexico38https://x.com/neuro_gaboTyler MeltonCorveus MedicalFounderWinter 2022HealthcareHouston, United States3—Roy StillwellNearWaveFounderWinter 2022HealthcareAustin, United States3https://x.com/stillwell_roy
Showing 1–20 of 122 founders
Frederik Ceyssens
Founder·Keylika
PRIMARY INFO
RoleFounder· not in title
Team size1
BatchSummer 2022
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
With a deep passion for diverse technologies, Frederik is truly a multi-domain expert. From tiny moving machines to nuclear space rockets, and electrical circuits to medical devices – Frederik has pursued an illustrious scientific career over the last 15 years developing key microtechnologies for lifescience applications. He also founded a venture-backed neurotech startup to cure blindness. Frederik holds a PhD and a Masters in IC design as well as a Bachelors' in Medicine.
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.
CredentialsPhD
DisciplineResearcherKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
KeylikaRedefining the Standard of Care for Iron Deficiency Anemia
Co-foundersBuddha Chaudhuri@buddhachaudhuri
