Björn Zethraeus is an angel investor based in Stockholm, Sweden. The known portfolio is one company, DeviceRadio.
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Investment focus
- Sector
- HardwareReal EstateSaaS
Contacts
Björn Zethraeus portfolio company (1)
- DeviceRadio
Investor Profile
The listing covers sectors Hardware, Real Estate and SaaS, and focus areas Construction Tech, Developer Tools, IoT and Network Hardware. Startups operating in these areas may find Björn Zethraeus relevant.
The stage tags on this profile are Seed and Series A.
The portfolio and focus above give founders context on whether Björn Zethraeus matches their raise.
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Frequently asked questions
Who is Björn Zethraeus?
Björn Zethraeus is an angel investor based in Stockholm, Sweden with one known investment on file, DeviceRadio. The sections above list the sectors and stages attached to that record.
What does Björn Zethraeus invest in?
Listed sectors include Hardware, Real Estate and SaaS; listed focus areas include Construction Tech, Developer Tools, IoT and Network Hardware. 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 Björn Zethraeus invest at?
The database lists Björn Zethraeus 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.
How do I contact Björn Zethraeus?
An email address, a phone number and a LinkedIn page are on file for Björn Zethraeus. 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 6 September 2026 · How this data is built · Report a correction or request removal