- Aeronautical Development Agency
- Aeronautical Development Establishment
- Antrix Corporation
- Bharti Airtel
- Bharat Dynamics
- Bharat Electronics
- Centre for Airborne Systems
- Defence Avionics Research Establishment
- Defence Electronics Applications Laboratory
- Defence Electronics Research Laboratory
- Defence Research Development Laboratory
- Electronics Corporation of India
- Electronics Research and Development Establishment
- European Aeronautic Defence and Space Company
- Elettronica
- Ericsson
- Hindustan Aeronautics
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- Hutchison Essar
- Indian Meteorological Department
- Indian Space Applications Centre
- Indian Space Research Organization
- Israel Aerospace
- National Aerospace Laboratory
- National Atmospheric Research Laboratory
- National Remote Sensing Agency
- Nokia
- Poland Institute of Telecommunications
- Reliance Communications
- Satish Dhawan Space Centre
- SIAE Microelettronica
- Space Applications Centre
- Tata Teleservices
- Vikram Sarabhai Space Centre
- Vodafone
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