Collax Team

Vision and mission are the basis for every future-oriented company. However, these values are lived and realized by the company’s employees. We are proud of our competent, committed and dynamic team.

Falk Birkner

Managing Director

As Managing Director, I am responsible for the strategic and operational direction of the company. The hands-on mentality and the still strong start-up character of Collax make my work exciting and effective. I am delighted to be able to lead such a committed team.

 +49 (761) 55 72 10‑0

Karin Denz

Sales Manager Renewals

After our innovative solutions have been developed and placed, I come into play. Responsible for Renewals, I accompany our customers for many years. The responsibility for all licenses sold and the wide scope for design are both a challenge and a lot of fun.

 +49 (761) 55 72 10‑0

Stefan Kaysersberg

Support and Sales Manager

I know all the products from the beginning. This enables me to find individual solutions. I really appreciate the changing challenges and the exemplary teamwork. In my private life, I keep myself fit by taking part in numerous sporting competitions alongside my family.

 +49 (761) 55 72 10‑600

Stefan Uhl


What I particularly like about my work is the combination of technology and direct customer contact. I enjoy getting to the bottom of IT problems. That means a new challenge every day. I find balance in sports. I start the day with a bicycle tour to our branch in Freiburg.

 +49 (761) 55 72 10‑600

Petra Kistner

Marketing Manager

For me, working at Collax means teamwork, motivated and friendly colleagues, innovative products and management with a good feel for the market. As a medium-sized company, we know exactly what freelancers and SMEs need. For this purpose we use all our experience and competence.

 +49 (761) 55 72 10‑36