Christian Tiessen

Active Investor

Senior Director Marketing at GEERS

Berlin, Germany

Christian Tiessen, Senior Director Marketing at GEERS is an active investor based in Berlin, Germany. This profile covers what Christian Tiessen backs, at which stage, and how founders can reach out in 2026.

Investor type: Angel
Stages: Seed
Invests in: Healthcare & BiotechMedTech & Medical DevicesConsumer & RetailE-commerce & D2CIoT & Connected DevicesManufacturing & IndustrialSports & Fitness
Location: Berlin, Germany
Typical check: $250K
Past investments: 3

Notable investments

Sonova GroupJUNIQETodaytickets

How to reach Christian Tiessen

Angels and operators like Christian Tiessen reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.

Frequently Asked Questions

What does Christian Tiessen invest in?

Christian Tiessen invests in Healthcare & Biotech, MedTech & Medical Devices, Consumer & Retail and E-commerce & D2C, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.