Fundraising Fox

Sacha Lévy

Founder

Founder at Theseus

San Francisco, California, United States

FoundedTheseus · YC

About

Sacha Lévy is Co-Founder and CTO at Theseus Technology, developing autonomous drone navigation systems. He previously conducted computer science research at Yale University on applications of large language models to biological data, and holds a computer engineering degree from McGill University.

LinkedIn ↗X / Twitter ↗
Latest on 𝕏

sachalevy @sachalevy3

Very very proud of our team, let’s keep shipping!!! @grayson_storm @jdmcnett14 @eufrizz @rahulkalak (+ Holden and anmeet) https://t.co/PtqwVG6RRE

Jun 8, 2025 · ♥ 17

Founder at TheseusYC S24

Intro paths

YC

Sacha 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 Aaron Epstein, General Partner at Y Combinator — the partner who ran Theseus's batch and knows the company first-hand. YC profile ↗

→

In turn, Sacha can intro founders to Theseus's investors below.

Theseus's investors · 5

AntlerFirst Round CapitalForesite CapitalLux CapitalY Combinator

Co-founders at Theseus

ILIan Laffey
Ian LaffeyFounder

Experience

  1. TheseusChief Technology Officercurrent2025 — presentSan Francisco, California, United States
  2. TheseusChief Scientist2024 — 2025San Francisco, California, United States
  3. Mila - Institut Québécois d'Intelligence ArtificielleUndergraduate Researcher2019 — 2023
  4. University of TorontoUndergraduate Astrophysics Research Fellowship at the Dunlap Institute2021Toronto, Ontario, Canada
  5. Valence DiscoverySoftware Engineering Intern2020Montreal, Quebec, Canada
  6. McKay BrothersHardware Engineering Intern2019Paris

Education

  1. Y Combinator2024
  2. Yale UniversityPhD student, Computer Science2023 — 2024
  3. McGill UniversityBachelor of Engineering - BE, Co-op2018 — 2023
  4. Ecole alsacienneBaccalauréat

Founder mafias

Y Combinator mafia8,668

Also came through, then founded or led a company.

Sam AltmanPresidentFounded LooptFred EhrsamYC Summer 2012Founded CoinbaseMatt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded PursuitDelian AsparouhovYC Summer 2014Founded Nightingale +1Justin KanYC Winter 2018Founded Rye +3

+ 8,661 more

Yale University mafia149

Also came through, then founded or led a company.

Justin KanPhysics and PhilosophyFounded Rye +3Harry GrunerFounded Hilos +2Kevin RyanBAFounded Business Insider +1Chad RigettiPhDFounded Sygaldry Technologies +1Ben SilbermannB.A.Founded Audiobeta +1Emmett ShearBSFounded Twitch +1

+ 142 more

McGill University mafia65

Also came through, then founded or led a company.

Noubar AfeyanBSFounded ProFound Therapeutics +6Avak KahvejianB.Sc.Founded ProFound Therapeutics +2Serge MesserlianBachelor of Science - BScFounded Creyon +1Natalia BakaevaArtsFounded cashew +1Jonathan LimMDFounded Boundless Bio +1Lev KokotovBachelor of Arts (B.A.)Founded PostgresML +1

+ 58 more

Ecole alsacienne mafia2

Also came through, then founded or led a company.

Gabrielle CHOUHigh SchoolFounded Allure Systems

Same school

Also attended Y Combinator2,000

Leo LuInvestor at Foundation CapitalMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesVictor SantosVictor Scout at One Way VenturesSwapnil JainCEO, Observe.AI at EMERGENT VENTURESChase AdamPartner at Very Serious Ventures

+ 1,994 more

Also attended Yale University623

Ann Miura-KoCo-founding Partner at FloodgateDavid SzeAdvisory Partner at GreylockMichael SeibelPartner Emeritus at Y CombinatorZheela QaiserInvestor at Index VenturesKarthik ArdhanareeswaranInvestor at GV (Google Ventures)TinaInvestments & Portfolio Services Team Member at Clear Ventures

+ 617 more

Also attended McGill University410

Harley FinkelsteinInvestor at Felicis VenturesMattias LjungmanInvestor at Moonfire VenturesNoubar AfeyanInvestor at Flagship PioneeringDavid NaultGeneral Partner at Luge CapitalLaviva MazharPrincipal at Luge CapitalLisa PurcellInvestor at Third Rock Ventures

+ 404 more

Also attended Ecole alsacienne3

Augustin PalleVice President at Quadrille CapitalColombe MoinetAssociate at Cathay InnovationGabrielle CHOUFounder at Allure Systems

Shared employers

Also worked at Theseus1

Ian LaffeyFounder at Theseus

Also worked at Mila - Institut Québécois d'Intelligence Artificielle11

Mike ArpaiaComputer scientist working on machine learning and data infrastructureSasha LuccioniInvestor at Blue Tulip VenturesMagaly CharbonneauPartner at Inovia CapitalIsaac SouweinePartner at Pender VenturesJean-David BeginMentor at Amiral VenturesJustine GauthierAdvisory Board at AInBC

+ 5 more

Also worked at University of Toronto79

AngelaGeneral Partner at Version One VenturesGraham CareyInvestment Director - Advanced Materials at Emerald Technology Ventures AgJoel DrewryPrincipal at Versant VenturesLeonid BoguslavskyPartner & Founder at RTP GlobalSteve LauPartner at Highland Creek PartnersRameez AnsariPartner at Highland Creek Partners

+ 73 more

Also worked at Valence Discovery3

Michael MeePrincipal at Amplitude Venture CapitalNicolas Jacques-BouchardGeneral Partner at Inertia VenturesPhilip FradkinFounder at Blank Bio