Ericsson

Idea Cellular

Huawei

COAI

Hughes Communication

Wipro

Nokia  Siemens Networks

Accenture

Vodafone Essar

Mobisoc

Bharti Airtel

Evalue Serve

Reliance Communication

Fibcom

Tata Tele services

Aksh Optifibre

TCS

RGV Telecom

Tech Mahindra

Essel Shyam Communication

Gilat Satellite Networks

ORG Informatics

GTL

Perot Systems

HCL Infosystems

Prima Tel

HCL Technology

Capital Wireless

HFCL Group

Tulip Telecom

Cable & Wireless

NEC HCL

 Kaene India

Syntel

 Aksh Optifibre Ltd.

Times Broadband

 Matrix Cellular

Zyxel Technologies

 One 97

 Real Time Systems

 Hyper City

 Sify

  BPL Telecom

 Last Mile

 Coral Telecom

 Toshniwal 

 Primus Telecommunications

 Delta Energy Systems

 D-Link

 India Bulls

  Precision Electronics

 Aircom International  India

 Spice Ltd.

 Techno Stat

 Gotocustomer

  Bright Point

 ICICI

  Telexcel