Segmed
YC W20San Francisco, US · Founded 2019 · Delaware corporation · 32 employees · 10 known investors
Segmed provides structured, de-identified medical imaging data and multimodal datasets from diverse populations to support research in AI and healthcare. The platform enables researchers and pharmaceutical companies to access fit-for-purpose imaging studies for diagnostics, therapeutics, and algorithm development.
Founders & leadership· Y Combinator alumni (W20)
Segmed was founded in 2019 by Martin Willemink, Jie Wu, Marinus Johannes Willemink, and Wojciech Adam Koszek.
Board

Investors · 10
Also in the syndicate · 2
Funding
SEC filings, press & company announcements$10.4M disclosed across 1 of 3 rounds · 2022–2024
- $10.4MSeries ASep 2024 · 3 sources
Advocate (lead), Advocate Health (lead), iGan Partners (lead)
Source ↗
▶$10.1MofferedNov 2022 · 18 investors · Other Health CareRule 506(b)
- Marinus Johannes WilleminkExecutive Officer, Director
- Wojciech Adam KoszekExecutive Officer, Director
- Sebastian AnastassiouDirector
- Offering amount
- $10.1M
- Minimum investment
- $5K
- First sale
- Oct 2022
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 2
by search overlapCompanies competing with Segmed for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Segmed do?
- Segmed provides structured, de-identified medical imaging data and multimodal datasets from diverse populations to support research in AI and healthcare. The platform enables researchers and pharmaceutical companies to access fit-for-purpose imaging studies for diagnostics, therapeutics, and algorithm development.
- Who founded Segmed?
- Segmed was founded by Martin Willemink, Jie Wu, Marinus Johannes Willemink, Wojciech Adam Koszek in 2019.
- Who are Segmed's investors?
- Segmed's investors include Blumberg Capital, Expeditions, Mighty Capital, Nina Capital, NovaCapital, South Quad, Y Combinator, iGan Partners.
- How much funding has Segmed raised?
- Segmed has disclosed $10.4M raised across 1 of its 3 known rounds.
- Where is Segmed headquartered?
- Segmed is headquartered in San Francisco, US.




