About
Lewis Wanjohi studied mathematics and computer science at MIT and is based in San Francisco, currently working on applied category theory and homotopy type theory at Tambua Health.
Founder at Tambua HealthYC W20
Intro paths
YC
Lewis went through Y Combinator (Winter 2020) — any YC alum in your network can reach them through the YC community.
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In turn, Lewis can intro founders to Tambua Health's investors below.
Tambua Health's investors · 1
Experience
- Yoneda TherapeuticsChief Executive Officercurrent2026 — presentSan Francisco Bay Area
- Yoneda Metals & ChemicalsChief Executive Officercurrent2026 — present
- Homotopic IntelligenceCo-Founder & CEOcurrent2025 — presentSan Francisco Bay Area
- AppleCompiler & Emulator Engineercurrent2024 — presentBeijing, China
- Y CombinatorTambua Healthcurrent2019 — presentMountain View, California
- Tambua HealthCo-Founder & CEOcurrent2018 — presentSan Francisco Bay Area
- Echoing GreenFellowcurrent2019 — presentNew York City Metropolitan Area
- HalcyonFellowcurrent2022 — presentWashington DC-Baltimore Area
- We Are Family FoundationWe Are Family Foundation Global Leadercurrent2018 — presentNew York, United States
- MIT Media LabSpectral Analysis Research2017 — 2018
- FIRSTSoftware Developer2017Washington DC-Baltimore Area
Frequently asked questions
- Who is Lewis Wanjohi?
- Lewis Wanjohi studied mathematics and computer science at MIT and is based in San Francisco, currently working on applied category theory and homotopy type theory at Tambua Health.
- Where does Lewis Wanjohi work?
- Lewis Wanjohi is Founder of Tambua Health.
- What companies did Lewis Wanjohi found?
- Lewis Wanjohi founded Tambua Health.
- Where did Lewis Wanjohi go to school?
- Lewis Wanjohi studied at Massachusetts Institute of Technology (Programming with Category Theory); Massachusetts Institute of Technology (Bachelor's degree, Mathematics and Computer Science).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1
+ 8,766 more
Massachusetts Institute of Technology mafia546
Also came through, then founded or led a company.
Elad GilPhDFounded Brain Co.Nat FriedmanBachelor of ScienceFounded XamarinMatt HuangB.S.Founded HotspotsDelian AsparouhovDropoutFounded Nightingale +1Drew HoustonBSFounded Dropbox +1Arash FerdowsiComputer ScienceFounded Dropbox
+ 539 more
Halcyon mafia2
Also came through, then founded or led a company.
Same school
Also attended Massachusetts Institute of Technology1,387
Fred WilsonCo-founder & Partner at Union Square VenturesElad GilSolo general partner investing through Gil CapitalAileen LeeFounder & Managing Partner of Cowboy VenturesHemant TanejaCEO & Managing Director of General CatalystNat FriedmanCo-lead of Meta Superintelligence Labs; co-founder of NFDGBrad FeldCo-founder of Foundry and Techstars
+ 1,381 more
Shared employers
Also worked at Apple489
Reid HoffmanCo-founder of LinkedIn; Partner at GreylockJim BreyerFounder & CEO of Breyer CapitalDaniel GrossMeta Superintelligence Labs; co-founder of NFDG and Safe SuperintelligenceSteve JurvetsonCo-founder of Future VenturesKai-Fu LeeChairman of Sinovation Ventures and CEO of 01.AISteve WozniakCo-founder of Apple
+ 483 more


























