- VAISALA (Finland)
Meteorological measuring systems
Wind Speed & direction, atmospheric pressure, temperature etc.)

- ZETRON (U.K./U.S.A)
Paging Controllers and Consoles for two way radio control, Radio Network Products

- S.M.C South Midland Communication (U.K.)
Handheld & Mobile Radio Systems (VHF / UHF)

- E.F. JOHNSON (U.S.A.)
Hand Portable & Car mounted radio equipment (Aeronautical Band), VHF/UHF mobile and fixed FM Communications radios, Trunked mobile Radio systems, Encryption Devices.

- E SYSTEM INC. (Raytheon Co.)(U.S.A.)
Radio and Line of Sight Communication. Highly Sophisticated Electronic Systems and Communications Command & Control Consoles.