Find your path to Roger
840 people in our graph share verified history with Roger — schools, employers, funds. One of them is your warm intro.
Kike MirallesunlockedRoger: together at McKinsey & Company (2018)
×3Roger: together at University of California, Berkeley
×2Roger: together at Massachusetts Institute of Technology
×5Roger: together at McKinsey & Company
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.
→
In turn, Roger can intro founders to sizeless's investors below.
sizeless's investors · 1
Co-founders at sizeless
CV
Cornelius von EinemFounder
Experience
- Massachusetts Institute of TechnologyPostdoctoral Researchercurrent2025 — presentBoston, Massachusetts, United States
- sizelessCo-Foundercurrent2023 — present
- University of California, BerkeleyPostdoctoral Researcher2022 — 2025
- Berkeley LabPostdoctoral Researcher2022 — 2025
- 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)).
Founder mafias
Y Combinator mafia10,230
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Stanford University mafia1,934
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McKinsey & Company mafia736
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Elad GilConsultantFounded Brain Co. +1Mike SpeiserAssociateFounded Pure StorageFabrice GrindaConsultantFounded FJ labsTony XuBusiness AnalystFounded DoorDashAlexandre ProtAssociateFounded Smartven +1Jagmeet LambaSenior Strategy ConsultantFounded Certa +3
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University of Cambridge mafia589
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Stewart ButterfieldMPhilFounded Flickr +1Demis HassabisBAFounded Google Deepmind +2C. Giovanni TraversoMBFounded Teal Bio +4Immad AkhundMaster of Arts (M.A.)Founded Mercury Technologies, Inc. +3Inaki BerenguerMasterFounded InfiniteWatch +2Harish AgarwalMaster of Philosophy - MPhilFounded Nori +2
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ETH Zürich mafia196
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Thomas DübendorferPhDFounded Spontacts +2Veronica Gambillara FonckEngineerFounded LimmaTech Biologics +1Dr. Hanspeter FässlerHonorary Councillor Award (Ehrenrat)Founded Gravis Robotics +1Stephen LakeVisiting ScholarFounded Jetson Home +1Maximilian MarquartDoktor (Ph.D.)Founded CHOVIVA +1Nikolay KobyshevDoctor of Science (Dr. sc.)Founded Assaia +1
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Same school
Also attended University of Cambridge1,581
Stewart ButterfieldCo-founder of Slack and FlickrDemis HassabisCo-founder & CEO of Google DeepMindNiko BonatsosFounder and Managing Partner of VerdictGeorgia StevensonInvestor at Index VenturesHannah SealInvestor at Index VenturesLeah von SiemensPartner at Manta Ray Ventures
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Bastian HasslingerInvestor at Index VenturesSteve VassalloInvestor at Foundation CapitalHelge DaebelPartner, Head of Water at Emerald Technology Ventures AgMaurin DaiInvestment Manager, Physical AI & Robotics at Emerald Technology Ventures AgChristoph FreiPartner, Head of Energy at Emerald Technology Ventures AgMax HeftiInvestment Director - Energy at Emerald Technology Ventures Ag
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Peter ThielCo-founder & Partner at Founders FundDavid SacksCo-founder & General Partner at Craft Ventures; former White House AI & Crypto CzarGarry TanPresident & CEO of Y CombinatorAlfred LinPartner at Sequoia CapitalJim BreyerFounder & CEO of Breyer CapitalMike Maples JrCo-founding Partner at Floodgate
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Shared employers
Also worked at Massachusetts Institute of Technology859
Aileen LeeFounder & Managing Partner of Cowboy VenturesMatt HuangCo-founder and Managing Partner at ParadigmMichael TruellCo-founder & CEO of CursorRaquel UrtasunFounder & CEO of WaabiColin WebbFounder & CEO of Avatar RoboticsAbraham BachrachCo-founder & CTO of Skydio
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Also worked at University of California, Berkeley529
Ali GhodsiCo-founder & CEO of DatabricksRaquel UrtasunFounder & CEO of WaabiArhaan A.Deeptech Fellow at Clear VenturesKevin Wijayaインドネシア法人代表 (Indonesia Office Representative) at CyberAgent CapitalPaul JennyBoard Chair at CincyTechMichael PerezDeputy General Counsel at Mucker Capital
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Also worked at Berkeley Lab132
Thomas WolfCo-founder & Chief Science Officer of Hugging FaceJessy RivestInvestor at Khosla VenturesBayan AlizadehPartner at S32Jan CrisostomoOperating Partner at Rackhouse Venture Management LpAvinash KantInvestor at Phoenix Venture PartnersDaphne ChePrincipal at Electric Feel Ventures Llc
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