Joël Jean-Mairet is a Managing Partner and co-Founder at Ysios Capital, whose known portfolio counts 7 companies.
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Investment focus
- Sector
- Healthcare
Contacts
Affiliated funds' portfolios
Managing Partner and co-Founder at Ysios Capital, whose known portfolio counts 7 companies
- ADCendo
- Neurona Therapeutics
- Splice Bio
- Memo Therapeutics
- Ona Therapeutics
- Engrail Therapeutics
- ReproNovo
Investor Profile
Joël Jean-Mairet is listed against sector Healthcare, and focus areas Biotech, Cell Therapy, Drug Discovery and Genetics in the database.
Stage-wise, the deals at Ysios Capital cluster around Growth, Pre-Seed and Seed rounds.
What the affiliated firm has backed is the closest available signal on whether Joël Jean-Mairet is worth approaching.
Colleagues at Ysios Capital
Julia Salaverria
Managing Partner
San Sebastián, Spain
Arturo Urrios
Partner
Barcelona, Spain
Guillem Laporta
Partner
Spain
Jordi Xiol
Partner
Barcelona, Spain
Karen Wagner
General Partner
Switzerland
Iñigo López-Huerta Anitua
Chief Financial Officer Ysios Capital Partners
Bilbao, Spain
Raúl Martín-Ruiz
Investor
Madrid, Spain
Frequently asked questions
Who is Joël Jean-Mairet?
Joël Jean-Mairet is a venture capital investor based in Barcelona, Catalonia, Spain, listed as Managing Partner and co-Founder at Ysios Capital. The known portfolio of that firm counts 7 companies. That portfolio belongs to the firm, not to Joël Jean-Mairet personally.
What does Joël Jean-Mairet invest in?
Listed sectors include Healthcare; listed focus areas include Biotech, Cell Therapy, Drug Discovery and Genetics. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Joël Jean-Mairet invest at?
Ysios Capital appears in Growth, Pre-Seed and Seed rounds across its known deals, and Joël Jean-Mairet is listed there as Managing Partner and co-Founder. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Joël Jean-Mairet listed at?
Joël Jean-Mairet is listed as Managing Partner and co-Founder at Ysios Capital. 7 other people in the database share a firm with Joël Jean-Mairet.
How do I contact Joël Jean-Mairet?
An email address, a phone number and a LinkedIn page are on file for Joël Jean-Mairet. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal