Updated:
Saarbruecker21
SB21 is a group of friends and internet/tech entrepreneurs who first met in the 2000s and mostly worked together in Saarbruecker Strasse 21 in Berlin...
Saarbruecker21
SB21 is a group of friends and internet/tech entrepreneurs who first met in the 2000s and mostly worked together in Saarbruecker Strasse 21 in Berlin Prenzlauer Berg. As active business angels, they invest in young startup and digital companies, either individually or collectively in this group since 2011. They provide seed funding and hands-on support, drawing on experience as founders who have built successful companies, sold or IPO'ed.
General information
Firm type
Generalist
Year founded
2011
Location
Region
Europe
Country
Germany
City
Berlin
Corporate office
Berlin, Germany
Principals
Robert Gentz
Founder
David Schneider
Founder
Rubin Ritter
Founder
Philipp Kreibohm
Founder
David Khalil
Business Partner
Lukas Brosseder
Business Partner
Robert Maier
Business Partner
Johannes Schaback
Business Partner
Sector focus
Frequently asked questions
Who runs investment decisions at Saarbruecker21?
There is no centralized investment committee. Each member — Robert Gentz, David Schneider, Rubin Ritter, Philipp Kreibohm, and others — invests individually or collectively based on personal conviction. A deal can proceed whenever any founder decides to back it, which keeps the group's process far faster than a typical VC partnership.
How does Saarbruecker21 source its deal flow?
The group's primary source is the Berlin tech ecosystem, where several members built and exited billion-euro companies. Their YPO memberships and relationships with early-stage funds like HV Capital and Cherry Ventures bring a steady stream of referrals. The firm's website also maintains an open submission process, though founder-to-founder introductions dominate.
Does Saarbruecker21 participate in fund commitments or only direct deals?
The group exclusively makes direct seed and early-stage investments. There is no public record of fund commitments or LP positions. Their model is entirely built around putting personal capital and operational expertise directly into startups, not allocating to other managers.
Which sectors does Saarbruecker21 explicitly avoid?
The group does not publicly maintain an exclusion list. However, their portfolio shows a clear avoidance of deep-tech, hardware, and capital-intensive industries like biotech or energy. The members' own backgrounds in e-commerce, marketplaces, and consumer subscription businesses create an informal filter toward software and digital platforms.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
Need institutional-grade insight on asset managers?
Altss delivers:
Prefer a guided tour?
We’ll walk you through: