References for the pictures and graphics used

On predominantly license-free pictorial material of the picture agencies unsplash and pixabay find use.

The European Commission provides a platform for online dispute resolution (OS):

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

Individual references of the photographers and originators of the images we use on our website and on LinkedIn

The details correspond to the following sample:

  • Photographer/author/right holder (artist name in the image database)

    Source of supply/image database, single image credits

concern GmbH
Gertrudenstraße 30-36
50667 Cologne

Represented by

Dr. Anne Fries, Dr. Markus Groß-Engelmann


Telephone: +49 (0) 221 / 630 606 300
Telefax: +49 (0) 221 / 630 606 309

Register entry

Entry in the commercial register
Register Court: Local District Court Cologne (original: Amtsgericht Köln)
Registration number: HRB 69159

VAT ID number


Responsible for the content

Dr. Anne Fries

Concept, realization and creation

concern GmbH


This legal notice also applies to our online presence on LinkedIn.