Henry Ndubuaku
FounderFounder at Cactus Compute
San Francisco, California, United States
FoundedCactus Compute · YC
About
Henry Ndubuaku previously held a position in AI/ML at Nvidia before founding Cactus.
Founder at Cactus ComputeYC S25
Intro paths
YC
Henry went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.
GP
Their group partner at YC was Andrew Miklas, General Partner at Y Combinator — the partner who ran Cactus Compute's batch and knows the company first-hand. YC profile ↗
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In turn, Henry can intro founders to Cactus Compute's investors below.
Cactus Compute's investors · 6
Antigravity CapitalSan FranciscoPelion Venture PartnersSalt Lake City · $1M – $20M checks · since 2025Rebel FundSan Francisco · $100K – $5M checks · since 2025Transpose Platform ManagementHoustonWellington ManagementBoston · $5M – $50M checks · since 2025Y CombinatorSan Francisco · $500K checks · since 2025
Co-founders at Cactus Compute
RS
Roman ShemetFounder
Experience
- Cactus (YC S25)Founder & CTOcurrent2025 — presentSan Francisco Bay Area
- Deep RenderAI Research Engineer2024London, England, United Kingdom
- WISDM (Wireless Coverage Ltd)ML Software Engineer2021 — 2024London, England, United Kingdom
Skills & more
Machine LearningPython (Programming Language)C (Programming Language)C++JAXPyTorchSIMDCUDADistributed ComputingGoogle Cloud Platform (GCP)
Languages English · Igbo
From Henry's professional profile.
Frequently asked questions
- Who is Henry Ndubuaku?
- Henry Ndubuaku previously held a position in AI/ML at Nvidia before founding Cactus.
- Where does Henry Ndubuaku work?
- Henry Ndubuaku is Founder of Cactus Compute.
- What companies did Henry Ndubuaku found?
- Henry Ndubuaku founded Cactus Compute.
- Where did Henry Ndubuaku go to school?
- Henry Ndubuaku studied at Queen Mary University of London (BEng EECS + MS AI).
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
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Queen Mary University of London mafia19
Also came through, then founded or led a company.
Ahmed DeyabBachelor of Engineering - BEngFounded Instagram +1Rob SchumacherMaster of Science (MS)Founded Nudge +1Georgia HiggsBachelor's degreeFounded GaiaDimeji SofoworaMaster of Laws (LLM)Founded Helium HealthHana ZaghloulFoundation Certificate in Humanities and Social ScienceFounded DayraChris MolozianBachelor of ScienceFounded Heroic Labs
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Same school
Also attended Queen Mary University of London69
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