Investor profile
Sebastian Anastassiou
Venture capital & Partner & Head of Investments at Nina Capital
Sebastian Anastassiou is a Partner & Head of Investments at Nina Capital, whose known portfolio counts 11 companies.
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Investment focus
- Sector
- AIHealthcareSaaS
Contacts
Affiliated funds' portfolios
Partner & Head of Investments at Nina Capital, whose known portfolio counts 11 companies
- Lillian Care
- Sober Sidekick
- Magentiq Eye
- Segmed
- CryoCloud
- DataJoint
- Rivia
- Datamonk
- Navidence
- EarlySight
- io Health
Investor Profile
The listing covers sectors AI, Healthcare and SaaS, and focus areas AI Applications, Analytics, Clinical AI and Clinical Trials. Startups operating in these areas may find Sebastian Anastassiou relevant.
Nina Capital appears in Pre-Seed, Seed and Series A rounds across its known deals.
The firm portfolio and the focus above give founders context on whether Sebastian Anastassiou matches their raise.
Colleagues at Nina Capital
Marc Subirats
General Partner
Barcelona, Spain
Ken Douglas
Partner
Barcelona, Spain
Yahel Halamish
Partner
Barcelona, Spain
Marta G. Zanchi
Founder & Managing Partner
United States
Jorge Juan Fernández García
Venture Partner
Barcelona, Spain
Frequently asked questions
Who is Sebastian Anastassiou?
Sebastian Anastassiou is a venture capital investor based in Barcelona, Catalonia, Spain, listed as Partner & Head of Investments at Nina Capital. The known portfolio of that firm counts 11 companies. That portfolio belongs to the firm, not to Sebastian Anastassiou personally.
What does Sebastian Anastassiou invest in?
Listed sectors include AI, Healthcare and SaaS; listed focus areas include AI Applications, Analytics, Clinical AI and Clinical Trials. 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 Sebastian Anastassiou invest at?
Nina Capital appears in Pre-Seed, Seed and Series A rounds across its known deals, and Sebastian Anastassiou is listed there as Partner & Head of Investments. 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 Sebastian Anastassiou listed at?
Sebastian Anastassiou is listed as Partner & Head of Investments at Nina Capital. 5 other people in the database share a firm with Sebastian Anastassiou.
How do I contact Sebastian Anastassiou?
An email address and a LinkedIn page are on file for Sebastian Anastassiou. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal