Information according to § 5 TMG:

Sandtstr. 53
57072 Siegen

Represented by:

ONTIV GmbH is represented by the
Managing Directors Dirk Kirschey and Thorsten Weber


Telephone: +49 271 221910
Fax: +49 271 2219119


Registration in the commercial register:
Register court: Amtsgericht Siegen
Registration number: HRB 10739

Value added tax:

Sales tax identification number according to §27 a sales tax law:

Responsible for the content according to § 55 Abs. 2 RStV:

Thorsten Weber
Sand road 53
57072 victories

Dispute settlement

The European Commission provides a platform for online dispute resolution (OS):
Our e-mail address can be found above in the imprint.

We are not willing or obliged to participate in dispute resolution procedures before a consumer arbitration board.

Liability for content

As a service provider, we are responsible according to § 7 Abs.1 TMG for own contents on these sides according to the general laws. According to §§ 8 to 10 TMG, however, we as a service provider are not obligated to monitor transmitted or stored third-party information or to investigate circumstances that indicate illegal activity.

Obligations to remove or block the use of information under general law remain unaffected. However, liability in this regard is only possible from the moment of knowledge of a specific infringement. Upon notification of appropriate violations, we will remove this content immediately.

Liability for links

Our offer contains links to external websites of third parties over whose contents we have no influence. Therefore, we can not assume any liability for these external contents. The content of the linked pages is always the responsibility of the respective provider or operator of the pages. The linked pages were checked for possible legal violations at the time of linking. Illegal content was not recognizable at the time of linking.

However, permanent content control of the linked pages is not reasonable without concrete evidence of a violation of the law. Upon notification of violations, we will remove such links immediately.


The content and works on these pages created by the site operators are subject to German copyright law. The duplication, processing, distribution and any kind of exploitation outside the limits of copyright require the written consent of the respective author or creator. Downloads and copies of this site are for private, non-commercial use only.

As far as the contents on this site were not created by the operator, the copyrights of third parties are considered. In particular contents of third parties are marked as such. Should you still be aware of copyright infringement, we ask for a note. Upon notification of violations, we will remove such content immediately.

Data protection

For data protection, please refer to our privacy policy, which you can find here.

Sources for the images and graphics used:

90978345teamwork am computer © contrastwerkstatt –
79864448laptop, cup and diary on table in office © peshkov –
100407421Generic design computer on the wooden table. 3d render © kantver –
80261441Industriearbeiter überprüft Anlage in einem Werk © industrieblick –
57325018Discussing project © pressmaster –
79361169Young people in the office © Boggy–
62159340Gantt chart and pen © leungchopan –
73613270Young business woman presenting hand drawn media icons © ra2 studio –

Sources for icons

Webicons – Website Shop Internet © Matthias Enter –
Webicons – Business Work © Matthias Enter –
Webicons – Business People Work © Matthias Enter –
100 Webicons 4 © Matthias Enter –
Simple and perfect – Website Iconset © Matthias Enter –
325 grey Top Icons © Matthias Enter –


Remote Support

Or call us at
+ 49 (0) 271 22 19 10

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Contact Us

Sandstraße 53
57072 Siegen

Call us!

Tel.: + 49 (0) 271 22 19 10
Mondays to Fridays
9 AM - 12:30 PM
1 PM - 5 PM