- ATLAS COPCO
- ABB
- ALLEN BRADLEY
- AMPHENOL
- AMPROBRE
- BALDOR
- BALLUFF
- BENTLEY NEVADA
- BIN MASTER
- CURTIN
- CUTLER HAMMER
- CROUSE HINDS
- FEDERAL SIGNAL
- FLUKE
- GENERAL ELECTRIC
- HERION
- HONEYWELL
- HUBBELL
- IFM ELECTRONIC
- IKUSI
- JOSLYN CLARK
- KRAUS NAIMER
- LAKE MONITORS
- NORGREN
- M.C DONNELL
- M.MONITOR
- MAGNALOY
- MAGNETROL
- MEGGER
- MERLIN GERIN
- MERRICK
- MILL-RAM
- MILLTRONICS
- MOTOROLA
- MSA
- NETWORK TECHNOLOGIES
- NEUTRONICS
- PEERLESS
- PELICAN
- PHILIPPS
- PHOENIX CONTACT
- RAMSEY
- RAYTEK
- RED LION CONTROLS
- ROSE ELECTRONICS
- SEMIKRON
- SICK
- SQUARE D
- TEKTRONIX
- TELEMECANIQUE
- TEMPOSONICS
- TR ELECTRONICS
- VIEWSONIC