Manufacturers
- Arbiter Systems
- Brugg Cable
- C&D Technologies
- CG Power Systems
- CI Agent
- Concast
- E-MAX Instruments
- Hoppecke
- Hubbell Enclosureres
- Modular Connections
- NGK-Locke
- PASCOR (Pacific Air Switch Corp.)
- Power Delivery Products
- Preformed Line Products
- S & C Electric Company
- Sefcor
- Sensorlink
- Square D
- Trench
- Union Metal