Founder Directory
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Founders56
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.Bio61%Bio coverage: 61% 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-company7%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 7% of these rows have at least one match.School21%School is matched from bios, case-sensitive for acronyms. 21% of these rows have at least one match.
- Min JinFounder · MolagriS26Industrials · Toronto
- Zaky HassanFounder/CEO · MolagriS26Industrials · Toronto
- Sam RogersFounder/CEO · Brumby (Formerly GrazeMate)W26Industrials · Sydney
- Kenneth Chan@kennychan256Founder · Nexa LabsS25Industrials · San Francisco
- Zarif Azher@ZarifAzherFounder/CEO · Nexa LabsS25Industrials · San Francisco
- Cole Robertson@cole__robertsonFounder/CTO · RebulkS25B2B · Olathe
- Warren Wijaya WangFounder/COO · RebulkS25B2B · Olathe
- Emmanouela PetsolariFounder/CEO · ACXS24Healthcare · New York
- Melina PetsolariFounder/CTO · ACXS24Healthcare · New York
- Jayesh K. Gupta@rejuvyeshFounder/CEO · SilurianS24Industrials · Seattle
- Nikhil ShankarFounder · SilurianS24Industrials · Seattle
- Jesse VollmarFounder/CEO · PrecipW24B2B · Ann Arbor
- Michael AsherFounder/CTO · PrecipW24B2B · Ann Arbor
- Matthew BedewitzFounder · Ohmic BiosciencesS23Industrials · San Francisco
- PJ SteinerFounder · Ohmic BiosciencesS23Industrials · San Francisco
- Jamie BalsillieFounder · HedgehogS22Industrials · San Francisco
- Wilson RuotoloFounder · HedgehogS22Industrials · San Francisco
- Alexander BrownFounder · Alga BiosciencesW22Industrials · San Francisco
- Caroline McKeonFounder · Alga BiosciencesW22Industrials · San Francisco
- Daria BalatskyFounder · Alga BiosciencesW22Industrials · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Min JinMolagriFounderSummer 2026IndustrialsToronto, Canada4—Zaky HassanMolagriFounder/CEOSummer 2026IndustrialsToronto, Canada4—Sam RogersBrumby (Formerly GrazeMate)Founder/CEOWinter 2026IndustrialsSydney, Australia3—Kenneth ChanNexa LabsFounderSummer 2025IndustrialsSan Francisco, United States3https://x.com/kennychan256Zarif AzherNexa LabsFounder/CEOSummer 2025IndustrialsSan Francisco, United States3https://x.com/ZarifAzherCole RobertsonRebulkFounder/CTOSummer 2025B2BOlathe, United States3https://x.com/cole__robertsonWarren Wijaya WangRebulkFounder/COOSummer 2025B2BOlathe, United States3—Emmanouela PetsolariACXFounder/CEOSummer 2024HealthcareNew York, United States4—Melina PetsolariACXFounder/CTOSummer 2024HealthcareNew York, United States4—Jayesh K. GuptaSilurianFounder/CEOSummer 2024IndustrialsSeattle, United States6https://x.com/rejuvyeshNikhil ShankarSilurianFounderSummer 2024IndustrialsSeattle, United States6—Jesse VollmarPrecipFounder/CEOWinter 2024B2BAnn Arbor, United States3—Michael AsherPrecipFounder/CTOWinter 2024B2BAnn Arbor, United States3—Matthew BedewitzOhmic BiosciencesFounderSummer 2023IndustrialsSan Francisco, United States2—PJ SteinerOhmic BiosciencesFounderSummer 2023IndustrialsSan Francisco, United States2—Jamie BalsillieHedgehogFounderSummer 2022IndustrialsSan Francisco, United States50—Wilson RuotoloHedgehogFounderSummer 2022IndustrialsSan Francisco, United States50—Alexander BrownAlga BiosciencesFounderWinter 2022IndustrialsSan Francisco, United States6—Caroline McKeonAlga BiosciencesFounderWinter 2022IndustrialsSan Francisco, United States6—Daria BalatskyAlga BiosciencesFounderWinter 2022IndustrialsSan Francisco, United States6—
Showing 1–20 of 56 founders
Cole Robertson
Founder/CTO·Rebulk
PRIMARY INFO
RoleFounder/CTO
Team size3
BatchSummer 2025
LocationOlathe, United States
Company statusActive
StageEarly
BIO
Co-Founder and CTO of Rebulk. Previously Head of Engineering at Chipp, an AI startup, and engineer #3 at Tropic, where he helped scale the company from seed to Series B. Earlier experience includes developing aviation products at Garmin. Also built a SaaS consulting business focused on MVP development, generating $300K in just over a year.
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
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
