Omron manufactures and develops non-contact solid state relays for heater control and three-phase motors. The heater control products enable temperature control for reflow ovens, molding machines and sintering ovens. The three-phase motor solid state relays are utilized with conveyor belts.

Teledyne is a manufacturer of solid state relays for the power, military and aerospace industries. The company's line of power solid state relays includes: DC output, single-phase AC output, dual output AC, three-phase, and quad output AC. Relays intended for military and aerospace applications include DC solid state relays, bi-directional solid state relays, and AC solid state relays.

Crouzet manufactures a number of solid state relay series. Solid state relay types include: panel mount AC output; DIN rail; panel mount Triac output; panel mount DC output; obsolete; three-phase panel mount; motor-reversing; and PCB mount.