SB21 is a syndicate. Based in Berlin, Germany. The known portfolio counts 10 companies, including Entrix, SECJUR, Kranus Health, a2zebra, Meine Erde and Synctive.
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Investment focus
Who to pitch at SB21
SB21 portfolio companies (10)
- Entrix
- SECJUR
- Kranus Health
- a2zebra
- Meine Erde
- Synctive
- CARL
- Floy
- Vaayu
- Seqstant
Co-investors
Funds that share portfolio companies with SB21.
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About SB21
The firm's listing covers sectors AI, Commerce, Consumer and Education, and focus areas Analytics, Customer Service, Data and Data Analytics; known deals cluster at Pre-Seed, Seed and Series A.
Of the 5 people on file at SB21, Johannes Kreibohm (Angel Investor), Martin Rost (Business Angel Investor) and Lukas Brosseder (Angel Investor) are listed as the contacts to approach first.
Across the known portfolio, 20 co-investors appear alongside SB21, including Arvantis Group, Hgdf and SwissHealth Ventures.
Frequently asked questions
What is SB21?
SB21 is a syndicate based in Berlin, Germany, with a known portfolio of 10 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does SB21 invest in?
Listed sectors include AI, Commerce, Consumer and Education; listed focus areas include Analytics, Customer Service, Data and Data Analytics. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does SB21 invest at?
The known deals of SB21 include Pre-Seed, Seed and Series A rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at SB21?
3 of the 5 people on file at SB21 are listed as contacts for the firm. All 5 have their own profile page.
How do I contact SB21?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 5 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal