Electronics Corporation of India limited

Bharat Electronics Limited

Defence Electronics Research Lab

Defence Research and Development Lab

Electronics Research and Development Establishment

Aeronautical Defence Establishment

Research Centre Imarat

Bharat Dynamics Ltd

Ananth Technologies Ltd

Avantel Ltd

ICOMM Tele Ltd

Zen Technologies Ltd

HBL Power Systems

Rohde & Schrawz

Jisnu Communications LTD

Kernex Micro Systems LTD

Digilogic Systems LTD

Nova Integrated Systems ltd

Lotus Wireless LTD

MEL Systems

Park Controls & Communication Pvt Ltd

Digilogic Systems Ltd

Merlinhawk Aerospace Pvt Ltd

Alpha Design Technology

Meltronics Systemtech Pvt Ltd

Advance Rail Control

G.G. Tronics

Rolta India

Tata Power

Larsen & Toubro Ltd

Mahindra Defense Systems Ltd

Bharat Forge Ltd

Hughes Communications India Ltd

Tata Advanced Systems Limited

HCL Info Systems Ltd

SAAB India

Gilat Satellite Networks

Precision Power Products (I) Pvt. Ltd