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Roger de Belsunce

Founder

Founder at sizeless

Berkeley, California, United States

Foundedsizeless · YC

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About

Roger de Belsunce earned a PhD in astrophysics from the University of Cambridge.

Founder at sizelessYC S23

Intro paths

YC

Roger went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.

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In turn, Roger can intro founders to sizeless's investors below.

sizeless's investors · 2

GaingelsNew York · $200K – $500K checksY CombinatorSan Francisco · $500K checks · since 2023

Co-founders at sizeless

CVCornelius von Einem
Cornelius von EinemFounder

Experience

  1. Massachusetts Institute of TechnologyPostdoctoral Researchercurrent2025 — presentBoston, Massachusetts, United States
  2. sizelessCo-Foundercurrent2023 — present
  3. University of California, BerkeleyPostdoctoral Researcher2022 — 2025
  4. Berkeley LabPostdoctoral Researcher2022 — 2025
  5. McKinsey & CompanyConsultant2018Berlin, Germany

Frequently asked questions

Who is Roger de Belsunce?
Roger de Belsunce earned a PhD in astrophysics from the University of Cambridge.
Where does Roger de Belsunce work?
Roger de Belsunce is Founder of sizeless.
What companies did Roger de Belsunce found?
Roger de Belsunce founded sizeless.
Where did Roger de Belsunce go to school?
Roger de Belsunce studied at University of Cambridge (Doctor of Philosophy - PhD, Theoretical & Computational Cosmology); ETH Zürich (BSc & MSc, Theoretical and Mathematical Physics); Stanford University (Research Scholar, Stanford Institute for Theoretical Physics (SITP)).

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