sirius-net GmbH is a medium-sized company with 20 employees and headquarters in Stuttgart.

Started in 2001 with a small team of developers, we have always combined creativity, content and technology with the philosophy of offering our customers the best possible support immediately and without complications.

Our corporate culture is characterized by cooperation, openness and a wide range of creative freedom. A positive attitude, initiative, commitment and the ability to rely on each other form the core of our values.

Managing Director

Markus Schlichenmaier

Managing Director

Charlotte Feigion

+49 711 96697-63


Porsche Club CMS Support

+49 711 96697-60

Data Protection Officer

+49 711 96697-60


Our training partners


Our sponsorships

Especially in challenging times, it is all the more important that social and societal commitment does not diminish. We are pleased that we can also contribute to this by providing appropriate support through donations, sponsorships or project work.

Our green oasis

Our modern office is complemented by lots of natural light, many green plants and a lively aquarium, creating an inspiring working environment.


sirius-net GmbH
Silberburgstr. 151
70176 Stuttgart

Phone +49 711 96697-60
Underground car park entrance via Herzogstr. 11 – Google Maps

Please call and a colleague will gladly open the entrance for you.

From Stuttgart main station you can reach us with all S-Bahn trains from platform 101 (Tief) in the direction of Schwabstraße,
stop Feuersee (2nd stop) – exit Silberburgstraße.