1. Alliance Data Systems Inc.
2. Alorica Inc.
3. ATOS SE
4. BT PLC
5. Concentrix
6. Entel Call Center S.A.
7. EXL Service Holding Inc.
8. Genpact Limited
9. HCL BPO Services NI Ltd.
10. IBEX Global Solutions PLC
11. International Business Machines Corporation
12. Plusoft Informatica Ltd.
13. Sitel Group
14. Tata Consultancy Services Ltd.
15. Teleperformance SE
16. TTEC Holdings Inc.
17. Wipro Ltd.