Florian Kirstein Axel von der Ohe Patrick Ben Koetter Marc Schiffbauer

sys4 is a group of well-known open source experts.
We excel at building interdisciplinary systems.
You get custom-fit solutions.

As a partnership uniting internationally reknown specialists for messaging, automation, solution design, security, compliance and identity management, we can offer a truly integrated approach.

Server environments and UNIX systems are the main focus. Typical clients are large and mid-sized companies and government authorities.

Tailored precisely to customers' requirements, we offer consulting, planning, development and implementation. We complement by support, monitoring and operate client platform and services.

Contact Us

We are looking forward to talk to you!

+49 89 3090 4664

Contact Persons
Patrick Koetter


Patrick Koetter p@sys4.de +49 89 3090 4664

Marc Schiffbauer


Marc Schiffbauer m@sys4.de +49 40 6094 5854

Axel von der Ohe


Axel von der Ohe a@sys4.de +49 30 6098 4640

sys4 AG
Franziskanerstra├če 15
81669 Munich
+49 89 3090 4664
sys4 AG - QR-Code (vCard)