1. Amdocs Group
2. Cerillion Technologies Limited
3. Comarch SA
4. Comviva Technologies Limited
5. CSG International Corporation
6. Hewlett Packard Enterprise Development LP
7. Huawei Technologies Co. Ltd.
8. Netcracker Technology Corp.
9. Nokia Corporation
10. Optiva Inc.
11. Oracle Corporation
12. SAP SE
13. Sterlite Technologies Limited
14. Subex Limited
15. Telefonaktiebolaget LM Ericsson
16. TEOCO Corporation