Abekas Diskus,
Advance Instruments, Analogic, Ancot, ATS, AVO/Megger, BP
Microsystems, Bradbury, Bradley, Boonton, Chauvin Arnoux, Checkmate,
Comark, Danbridge, Datron, Deutsch, Dunegan /Endevco, EIP, ENI, ESI,
Fairchild, General Microwave, General Radio, Graphtec, Hitachi,
Hitex, ICT, IDACOM, IRWIN, Kenwood, Kikusui, Kodak, Laser Precision,
Leader, Lem Heme, Lion, LSI Logic, Meguro, Microsystem, Microtek,
Microtest, Minolta, NA Industries, National Instruments, Navtel,
Noise/Com, Northern Design, Paradise Datacom, Pioneer, Polar,
Riserbond, Sangamo Weston, Sayrosa, Schaffner, Seiko, Siemens, SOAR,
Solomat, SONY, Stag, Standford Research Systems, Sun Microsystems,
Systron Donner, Telonic, Thron, Times Electronics, Valhalla
Scientific, Walker, WTW, Xantrex