F&M Consulting Gröne It-Services UG
- Westaap 25, 44581 Castrop-Rauxel
Francotyp-Postalia Holding AG
- Prenzlauer Promenade 28, 13089 Berlin
- +49 (800) 3726268
- +49 (1805) 344214
ZALARIS Deutschland AG
- Rathausplatz 3, 24558 Henstedt-Ulzburg
- +49 (4193) 7532-0
- +49 (4193) 7532-10
midcom GmbH
- Bahnhofstraße 2, 53340 Meckenheim
- +49 (2225) 999999-0
- +49 (2225) 999999-8
operational services GmbH & Co. KG
- Frankfurt Airport Center, 60549 Frankfurt am Main
- +49 (69) 689702-710
- +49 (69) 689702-205
IT Outsourcing
- Messegelände, 30521 Hannover
- +49 (511) 89-0
- +49 (511) 89-32626
DIHK-Bildungs-GmbH
- Adenauerallee 86, 53113 Bonn
- +49 (228) 6205-101
- 0228-6205-5-161
outsourcing4work GmbH
- Otto-Hesse-Strasse 19 (T1), 64293 Darmstadt
- +49 (6151) 906990-0
- +49 (6151) 906990-9
SOB Sales Outsourcing Business GmbH
- Zollikerstrasse 27, 8032 Zürich
- +41 (44) 38664-04
- +41 (44) 38664-01
APM Outsourcing Ltd.
- Westhafenplatz 1, 60327 Frankfurt am Main
- +49 (69) 7104564-10
- +49 (69) 7104564-50