An angel investor and operator angel based in Berlin, Germany, Samuli Sirén has one known investment, Newtracks.
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Investment focus
- Sector
- AIFinTechHealthcareSaaS
Contacts
Samuli Sirén portfolio company (1)
- Newtracks
Affiliated funds' portfolios
General Partner and Founder at Redstone, whose known portfolio counts 3 companies
- ICE Bioscience
- Shanmai.cn
- Zhaoliangji.com
Investor Profile
The listing covers sectors AI, FinTech, Healthcare and SaaS, and focus areas Database, Digital Health, Enterprise SaaS and Machine Learning. Startups operating in these areas may find Samuli Sirén relevant.
Samuli Sirén is listed for Seed and Series A rounds in the database.
The portfolio and focus above give founders context on whether Samuli Sirén matches their raise.
Colleagues at Redstone
Kaj Hagros
Managing Partner, Nordics
Helsinki, Finland
Michael Brehm
Managing Partner
Munich, Germany
Michael Jackson
Member of Advisory Board
Paris, France
Timo Fleig
Venture Partner
Berlin, Germany
Lukas André
General Partner
Zürich, Switzerland
Ben Scheidt
Partner
Berlin, Germany
Niklas Grunewald
Investor
Berlin, Germany
Moritz Gillmair
Investor
Berlin, Germany
Mohamed F.
Partner
Berlin, Germany
Lars Haerle
Partner & CFO/COO
Berlin, Germany
Oskari Lehtonen
Venture Partner Redstone Nordics
Helsinki, Finland
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Frequently asked questions
Who is Samuli Sirén?
Samuli Sirén is an angel investor and operator angel based in Berlin, Germany with one known investment on file, Newtracks. The sections above list the sectors, stages and firms attached to that record.
What does Samuli Sirén invest in?
Listed sectors include AI, FinTech, Healthcare and SaaS; listed focus areas include Database, Digital Health, Enterprise SaaS and Machine Learning. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Samuli Sirén invest at?
The database lists Samuli Sirén for Seed and Series A rounds. 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 Samuli Sirén listed at?
Samuli Sirén is listed as General Partner and Founder at Redstone. 11 other people in the database share a firm with Samuli Sirén.
How do I contact Samuli Sirén?
An email address, a phone number and a LinkedIn page are on file for Samuli Sirén. 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