Avatar of John Johannes Jähnke

John Johannes Jähnke

Startup Strategist & Online Marketing Consultant

Verified profile

John has1 followers

Tags

  1. Magic 2
  2. Startup Strategy 2
  3. Visionaire 2

Followers

Following

6 More

Experience

  1. Startup Strategist & Online Marketing Consultant

    McGrinsey.com 1/2000 - Present

Links

Addresses

Description Address
Berlin Base

Prinzenstraße 42
10969 Berlin
Deutschland