1 Genpact
2 Transworks
3 IBM Daksh
4 TCS BPO
5 Cambridge Solutions
6 WNS Global Solutions
7 Wipro BPO
8 Convergys India
9 Firstsource Solutions
10 HCL BPO
11 Aegis BPO
12 Infosys BPO
13 EXL Services
14 Sutherland Global Services
15 vCustomer
16 HTMT Global
17 24/7 Customer
18 Aptara
19 e4e
20 MphasiS BPO