1 DST Services
2 Fiserv
3 Banctec
4 Startek
5 Vantive
6 MasterCard
7 Wipro
8 Net 1 UEPS
9 Heartland Payment Systems
10 Total System Services

1 IBM
2 Firstsource
3 Fiserv
4 HCL Tech
5 Mphasis
6 Serco
7 TCS
8 EXL Service
9 IGATE
10 Syntel

1 Genpact
2 TCS
3 HCL Tech
4 WNS
5 Wipro
6 Infosys
7 Syntel
8 Cognizant
9 Serco
10 iGate

1 Broadridge
2 Genpact
3 BNP Paribas
4 Fidelity
5 Citi
6 BTIG
7 Flatword Solutions
8 Pershing
9 HSBC
10 Xerox

1 Accenture
2 TCS
3 IGATE
4 Wipro
5 Sutherland
6 EXL Services
7 IBM
8 Genpact
9 Xchanging
10 Firstsource

1 SITEL
2 Xerox
3 Teleperformance
4 Aegis
5 Tech Mahindra
6 Serco
7 EGS
8 Alorica
9 Transcom
10 Sutherland

1 Ameridial
2 Allwest
3 LiveOps
4 Global Response
5 Customer Elation
6 EXL Services
7 Acena
8 Caleris
9 Telvists
10 UP Creative

1 Sutherland
2 Genpact
3 HCL Tech
4 SITEL
5 TCS
6 Xchanging
7 FIS Global
8 Syntel
9 WNS
10 Firstsource

1 Conectys
2 Convergys
3 Marketpoint
4 Vox Pro Group
5 SITEL
6 Telus
7 Epic Connections
8 Pro Call
9 Sykes
10 World Phoning Group

1 Wipro
2 EGS APAC
3 Genpact
4 Teleperformance
5 Cognizant
6 HCL Tech
7 Transcom Worldwide
8 SITEL
9 HGS
10 Minacs

1 Tech Mahindra
2 Capgemini
3 SITEL
4 WNS
5 Cognizant
6 Genpact
7 Accenture
8 HCL Tech
9 Aegis
10 Infosys

1 The Heritage Company
2 BrightKey
3 InfoCision
4 AnSer
5 SITEL
6 USA 800
7 Verbatim
8 Responsive Call Center
9 TELUS
10 Contact America

1 Live Ops
2 Flatworld Solutions
3 Dial America
4 TigerTel
5 AmeriCall
6 TMP Direct
7 Senture
8 InfoCision
9 Responsive Call Center
10 Acquire BPO

1 Innodata
2 Aegis Global
3 RR Donnelley
4 Aequor Media
5 HCL Tech
6 Cognizant
7 Firstsource
8 Hewlett Packard
9 Infosys
10 SPi Global

1 Hexaware
2 Broadridge
3 Viteos
4 NIIT
5 Syntel
6 Genpact
7 Cognizant
8 Avaloq
9 eClerx
10 EXL Services

1 EXL Services
2 WNS
3 Serco
4 Dell
5 Genpact
6 Xchanging
7 CSC
8 Capita
9 Wipro
10 TCS

1 Infosys
2 IBM
3 Accenture
4 EGS
5 Tech Mahindra
6 WNS
7 Capgemini
8 Steria
9 Sutherland
10 Datamatics

1 Convergys
2 Concentrix
3 Teleperformance
4 Xerox
5 Teletech
6 Sykes
7 Sitel
8 Aegis
9 HGS
10 Genpact

1 Entercoms
2 OnProcess
3 Celestica
4 Capgemini
5 HAVI Global
6 Genpact
7 WNS
8 TCS
9 Accenture
10 Wipro

1 Salesforce.com
2 Pegasystems
3 Oracle
4 Microsoft
5 SAP
6 Lithium Technologies
7 SugarCRM
8 CRMnext
9 Zendesk
10 Verint Systems

1 UPS Supply Chain
2 DHL
3 Expeditors
4 Agility
5 Ceva
6 DB Schenker
7 Kuehne Nagel
8 DSV
9 Pantos
10 UTi

1 Infor
2 SAS
3 Teradata
4 SAP
5 IBM
6 North Plains
7 BrandSystems
8 At Task
9 Microsoft
10 Brandmaker