Founder Directory
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Founders64
Known for these resultsRole39%Role is parsed from founder titles in yc.db. Known for 39% 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-company14%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 14% of these rows have at least one match.School22%School is matched from bios, case-sensitive for acronyms. 22% of these rows have at least one match.
- Eric Nilsson@eric_nilsson_Founder/CTO · MeteoricS26Industrials · San Francisco
- Mete Karslioglu@MeteKarsli0gluFounder/CEO · MeteoricS26Industrials · San Francisco
- George RoseFounder/CEO · Rise ReformingS26Industrials · Chicago
- Jona van OordFounder/COO · Rise ReformingS26Industrials · Chicago
- Lucas ZubillagaFounder/CTO · Rise ReformingS26Industrials · Chicago
- Berkley NobleFounder/CTO · DuraniumS25Industrials · San Francisco
- Brenden Prins-McKinneyFounder/CEO · DuraniumS25Industrials · San Francisco
- Alex FusterFounder/CEO · AstroW25Industrials · New York
- Antonio MonrealFounder/CTO · Revise RoboticsW25Industrials · New York
- Rupesh JeyaramFounder/CEO · Revise RoboticsW25Industrials · New York
- Eric KimFounder/CTO · NetworkOceanS24Industrials · San Francisco
- Sam Mendel@sammendel4Founder/CEO · NetworkOceanS24Industrials · San Francisco
- Derek ModzelewskiFounder/CTO · RewbiS24Industrials · San Francisco
- Thomas MargeFounder/CEO · RewbiS24Industrials · San Francisco
- Dasha CherepennikovaFounder · Line.BuildS23B2B · San Francisco
- Stephanie VasquezFounder · Line.BuildS23B2B · San Francisco
- Jack O'Grady@jack_ogradyFounder · AtmetoW23Industrials · Los Angeles
- Ferhat Babacan@ferhaatbabacaanFounder · BluedotW23Fintech · San Francisco
- Selinay Parlak@selinayfilizpFounder · BluedotW23Fintech · San Francisco
- Arpan RauFounder · OutSail TechnologiesW23Industrials · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Eric NilssonMeteoricFounder/CTOSummer 2026IndustrialsSan Francisco, United States2https://x.com/eric_nilsson_Mete KarsliogluMeteoricFounder/CEOSummer 2026IndustrialsSan Francisco, United States2https://x.com/MeteKarsli0gluGeorge RoseRise ReformingFounder/CEOSummer 2026IndustrialsChicago, United States4—Jona van OordRise ReformingFounder/COOSummer 2026IndustrialsChicago, United States4—Lucas ZubillagaRise ReformingFounder/CTOSummer 2026IndustrialsChicago, United States4—Berkley NobleDuraniumFounder/CTOSummer 2025IndustrialsSan Francisco, United States12—Brenden Prins-McKinneyDuraniumFounder/CEOSummer 2025IndustrialsSan Francisco, United States12—Alex FusterAstroFounder/CEOWinter 2025IndustrialsNew York, United States1—Antonio MonrealRevise RoboticsFounder/CTOWinter 2025IndustrialsNew York, United States3—Rupesh JeyaramRevise RoboticsFounder/CEOWinter 2025IndustrialsNew York, United States3—Eric KimNetworkOceanFounder/CTOSummer 2024IndustrialsSan Francisco, United States4—Sam MendelNetworkOceanFounder/CEOSummer 2024IndustrialsSan Francisco, United States4https://x.com/sammendel4Derek ModzelewskiRewbiFounder/CTOSummer 2024IndustrialsSan Francisco, United States3—Thomas MargeRewbi2× YCFounder/CEOSummer 2024IndustrialsSan Francisco, United States3—Dasha CherepennikovaLine.BuildFounderSummer 2023B2BSan Francisco, United States3—Stephanie VasquezLine.BuildFounderSummer 2023B2BSan Francisco, United States3—Jack O'GradyAtmetoFounderWinter 2023IndustrialsLos Angeles, United States2https://x.com/jack_ogradyFerhat BabacanBluedotFounderWinter 2023FintechSan Francisco, United States15https://x.com/ferhaatbabacaanSelinay ParlakBluedotFounderWinter 2023FintechSan Francisco, United States15https://x.com/selinayfilizpArpan RauOutSail TechnologiesFounderWinter 2023IndustrialsSan Francisco, United States3—
Showing 1–20 of 64 founders
Thomas Marge
Founder/CEO·Rewbi
PRIMARY INFO
RoleFounder/CEO
Team size3
BatchSummer 2024
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Thomas is co-founder and CEO of Rewbi, which uses AI to optimize grid-connected battery storage. He previously founded inBalance, a YC W21 company, which was acquired by Stem (NYSE: STEM) in January of 2023. He led battery storage optimization and forecasting for Stem. He completed part of a Pure Mathematics PhD at University of Cambridge, which he left to build inBalance. He holds a Masters in Applied Mathematics and B.S.E. in Pure and Applied Mathematics from Johns Hopkins, graduating early.
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
2× YC founderVerified prior exitSerial founder · self-declaredExit mentioned in bio
- W21inBalanceAcquired
- S24RewbiActive · this entry
COMPANY CONTEXT
RewbiA stealth mode startup.
Co-foundersDerek Modzelewski
