Any questions about the product:
Contact SIGMA System Audio-Visuell GmbH:
+49 211 5377351

OOS Hotline (for general questions)
+49 (0)211 4560-400

Only for traders

SIGMA System Audio-Visuell GmbH


SIGMA System Audio-Visuell GmbH
Schiessstr. 53
40549 Düsseldorf

Phone: 0049 211 53770
Fax: 0049 211 5377177

Accessibility during fair event

Office: Messehochhaus
Phone: 0049 211 5377351
Fax: 0049 211 5377177

Contact customer support

Phone: +49 211 5377351


We are SIGMA. Your team for audiovisual communication technology.

For over 45 years. With groundbreaking ideas, comprehensive service, and a lot of passion. Located at the trade fair location in Düsseldorf, we are well-versed and can always find the best solutions for you.


We turn communication into an experience.

For you. For your customers. And for your trade fair success.

We are your full-service partner for audiovisual communication technology. With tailored 360° solutions at the highest technical level, innovative and professional. With us, you get everything from one source, from planning to installation to smooth operation. Including content implementation and technical support – and the assurance that everything works.


We make your trade fair appearance creative, interactive, and effective.

We have individual solutions and the perfect equipment for all your requirements. With the latest technologies in video, audio, interaction, IT, and control.


The special thing is our everyday life. For over 45 years.

SIGMA has been around since 1977. As a family-owned company specializing in professional media technology, we focus on the implementation of audiovisual projects. And everything you need for successful presentations and trade fair appearances.

Our product selection

SIGMA System Audio-Visuell GmbH
Schiessstraße 53
40549 Düsseldorf

Tel. +49 (0) 211-5377-0
Fax +49 (0) 211-5377-177

Volker Schräger-Enkirch
Karsten Lange

Handelsregister Düsseldorf HRB 12829
USt-ID: DE 121 308 203