Fundraising Fox

Sergio Charles

Founder

Co-Founder & CEO at Thesis

San Francisco, California, United States

FoundedThesis · YC

About

Sergio Charles has conducted AI research at Google X, Nvidia, and Stanford's AI Lab. He holds a B.S. in Mathematics and Computer Science and an M.S. in Statistics from Stanford.

Co-Founder & CEO at ThesisYC F25

Intro paths

YC

Sergio went through Y Combinator (Fall 2025) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Tom Blomfield, Monzo and GoCardless co-founder; Y Combinator partner on leave and Anthropic compute-team member. — the partner who ran Thesis's batch and knows the company first-hand. YC profile ↗

In turn, Sergio can intro founders to Thesis's investors below.

Co-founders at Thesis

LCLuigi Charles

Experience

  1. Thesis (YC F25)Co-Founder & CEOcurrent2025 — presentSan Francisco, CA
  2. X, The Moonshot FactoryAI Resident2025Mountain View, California, United States
  3. Stanford University Department of Computer ScienceCourse Assistant2024 — 2025
  4. QuantResQuantitative Research2023 — 2024
  5. Stanford Artificial Intelligence Laboratory (SAIL)Research Assistant2022 — 2023Stanford, California, United States
  6. Stanford Artificial Intelligence Laboratory (SAIL)CURIS Research Fellow2022Stanford, California, United States
  7. Stanford Artificial Intelligence Laboratory (SAIL)Research Assistant2021 — 2022Stanford, California, United States
  8. NVIDIADeep Learning Research2021Santa Clara, California, United States
  9. Society for Science & the PublicSTS Regeneron2017 — 2019

Skills & more

Python9LaTeX2C1Java1JavaScript1Swift (Programming Language)1C++1MERN Stack1PyTorchComplex Analysis11Differential Geometry7Machine Learning
+10 moreAlgorithmsReal AnalysisAlgebraic GeometryDifferential EquationsLinear AlgebraAlgebraic TopologyMobile Application DevelopmentDeep LearningArtificial Intelligence (AI)Reinforcement Learning

From Sergio's professional profile.

Frequently asked questions

Who is Sergio Charles?
Sergio Charles has conducted AI research at Google X, Nvidia, and Stanford's AI Lab. He holds a B.S. in Mathematics and Computer Science and an M.S. in Statistics from Stanford.
Where does Sergio Charles work?
Sergio Charles is Co-Founder & CEO of Thesis.
What companies did Sergio Charles found?
Sergio Charles founded Thesis.
Where did Sergio Charles go to school?
Sergio Charles studied at Stanford University (Master of Science - MS, Statistics); Stanford University (Bachelor of Science - BS, Mathematics); University of Oxford (Visiting Student, Mathematics).

Founder mafias

Y Combinator mafia8,773

Also came through, then founded or led a company.

+ 8,766 more

Stanford University mafia903

Also came through, then founded or led a company.

+ 896 more

University of Oxford mafia290

Also came through, then founded or led a company.

+ 283 more

NVIDIA mafia81

Also came through, then founded or led a company.

+ 74 more

Lyford Cay International School mafia2

Also came through, then founded or led a company.

Same school

Shared employers