Fundraising Fox

Thomas Marge

Founder

Founder at Rewbi · Founder at inBalance

San Francisco, California, United States

FoundedinBalance · YCRewbi · YC

30 Under 30 2026 · Energy & Green Tech

About

Thomas co-founded inBalance, a Y Combinator-backed battery storage optimization company that was acquired by Stem in 2023. He holds a master's degree in Applied Mathematics and undergraduate degree in Pure and Applied Mathematics from Johns Hopkins, and completed doctoral coursework in Pure Mathematics at University of Cambridge before pursuing entrepreneurship.

Founder at RewbiYC S24

Intro paths

YC

Thomas went through Y Combinator (Summer 2024) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Nicolas Dessaigne, General Partner at Y Combinator — the partner who ran Rewbi's batch and knows the company first-hand. YC profile ↗

In turn, Thomas can intro founders to Rewbi's investors below.

Co-founders at Rewbi

DMDerek Modzelewski
Derek ModzelewskiCo-Founder and CTO

Founder at inBalanceYC W21

Intro paths

YC

Thomas went through Y Combinator (Winter 2021) — any YC alum in your network can reach them through the YC community.

In turn, Thomas can intro founders to inBalance's investors below.

Experience

  1. RewbiCo-Founder and CEOcurrent2024 — presentSan Francisco Bay Area
  2. Stem, Inc.Director, Product Management - Forecasts2023 — 2024San Francisco Bay Area
  3. Stem, Inc.Co-Founder and CEO of inBalance2019 — 2023
  4. inBalanceFounder, CEO (Acquired by Stem, Inc.)2019 — 2023
  5. National Science Foundation (NSF)Wind Power Systems Consultant2016 — 2019Madrid, Spain
  6. Massachusetts Institute of TechnologyVoting Rights Data Institute Grad Fellow2018Greater Boston Area
  7. The Johns Hopkins UniversityBaseball Scheduling Consultant2015 — 2018
  8. Johns Hopkins Whiting School of EngineeringLecturing Teaching Assistant2015 — 2018
  9. Morgan StanleyPortfolio Risk Analyst2017

Skills & more

Public Speaking1Research2Social MediaLeadership2Customer ServiceData AnalysisMatlabEvent PlanningTeamwork1Management

From Thomas's professional profile.

Frequently asked questions

Who is Thomas Marge?
Thomas co-founded inBalance, a Y Combinator-backed battery storage optimization company that was acquired by Stem in 2023. He holds a master's degree in Applied Mathematics and undergraduate degree in Pure and Applied Mathematics from Johns Hopkins, and completed doctoral coursework in Pure Mathematics at University of Cambridge before pursuing entrepreneurship.
Where does Thomas Marge work?
Thomas Marge is Founder of inBalance and Founder at Rewbi.
What companies did Thomas Marge found?
Thomas Marge founded inBalance, Rewbi.
Where did Thomas Marge go to school?
Thomas Marge studied at Y Combinator (W21, S24); University of Cambridge (Doctor of Philosophy - PhD); The Johns Hopkins University (Master's degree, Bachelor's Degree).

Founder mafias

Y Combinator mafia8,773

Also came through, then founded or led a company.

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Y Combinator mafia4,716

Also came through, then founded or led a company.

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University of Cambridge mafia256

Also came through, then founded or led a company.

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The Johns Hopkins University mafia58

Also came through, then founded or led a company.

+ 51 more

National Science Foundation mafia15

Also came through, then founded or led a company.

+ 8 more

Same school

Shared employers