- 4C Group
- Accenture Lexta
- Active Sourcing
- Amendos
- Axxcon
- Bach Consulting
- BearingPoint
- Cassini Consulting
- Capgemini
- CAP Consulting
- Coeus
- Conwiss
- Deloitte
- Dr. Fochler & Company
- EY
- Gartner
- Gebhardt
- HDP
- Horvath & Partners
- HiSolutions
- IT-SCM
- ISG
- KPC
- KPMG
- Matrix Technology
- Metrics
- Microfin
- Mindeight
- Mita Consulting
- Navisco
- Novedas
- Noventum
- Primestone Consulting
- PwC
- Timetoact
- Ventum Consulting
- Victor