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 CSC
2 Cognizant
3 IBM
4 Dell
5 Accenture
6 CGI
7 HCL
8 Fujitsu
9 Tech Mahindra
10 IGATE

1 Accenture
2 Capgemini
3 Polaris
4 Dell
5 Softek
6 Birlasoft
7 IBM
8 Virtusa
9 Mindtree
10 Unisys

1 Atos
2 Dell
3 T Systems
4 HP
5 NTT Data
6 Cognizant
7 Microland
8 IBM
9 Infosys
10 HCL

1 CGI
2 Mphasis
3 Wipro
4 Cognizant
5 ITC Infotech
6 Luxoft
7 EPAM
8 Attra Infotech
9 Hexaware
10 Endava

1 Accenture
2 IBM
3 HP
4 Capgemini
5 Cognizant
6 WNS
7 Genpact
8 TCS
9 Wipro
10 Infosys

1 Cisco
2 AWS
3 HP
4 Tech Mahindra
5 Verizon
6 Dell
7 AT&T
8 Fujitsu
9 Accenture
10 Rackspace

1 SAP
2 IBM
3 HP
4 Deloitte
5 NTT Data
6 PWC
7 Cognizant
8 Atos
9 Wipro
10 Capgemini

1 Symphony
2 Teleca
3 HCL
4 IBM
5 Infosys
6 Cognizant
7 TCS
8 EPAM
9 Accenture
10 NTT Data

1 Microsoft
2 Amazon Web Services
3 CenturyLink
4 VMWare
5 IBM
6 Google
7 Joyent
8 Rackspace
9 Dimension Data
10 Verizon

1 Accenture
2 Deloitte
3 PwC
4 Oracle Consulting
5 Hitachi Consulting
6 HP Enterprise Services
7 Cognizant
8 Wipro
9 Infosys
10 Tata Consultancy Services

1 IBM
2 Accenture
3 KPMG
4 PwC
5 Deloitte
6 L&T Infotech
7 Tech Mahindra
8 Capgemini
9 Infosys
10 CGI

1 Deloitte
2 Accenture
3 PwC
4 Wipro
5 TCS
6 HP
7 IBM
8 Cognizant
9 Infosys
10 KPMG

1 AT&T
2 Orange Business Services
3 Accenture
4 HCL
5 BT Global
6 Cisco
7 CSC
8 IBM
9 Dimension Data
10 Avaya

1 Perceptive Software
2 Hyland
3 OpenText
4 EMC
5 IBM
6 Microsoft
7 Oracle
8 EMC
9 Newgen
10 Sungard

1 Fujitsu
2 HCL
3 Atos
4 HP
5 IBM
6 Wipro
7 CSC
8 Tech Mahindra
9 IGATE
10 Infosys

1 Accenture
2 Deloitte
3 EY
4 Cognizant
5 PwC
6 IBM
7 Capgemini
8 HP
9 KPMG
10 NTT Data

1 Sophos
2 Symantec
3 Kaspersky Lab
4 Webroot
5 Trend Mico
6 CheckPoint
7 Panda
8 Stormshield
9 IBM
10 F-Secure

1 Datapipe
2 FireHost
3 Rackspace
4 Peak 10
5 AT&T
6 CenturyLink
7 Navisite
8 Verizon Terremark
9 Layered Tech
10 Dimension Data