Contract Manufacturing
Zentech Manufacturing, Inc. is a premier electronics contract manufacturing company offering assembly of printed circuit boards, PCB testing, and design services.
http://www.zentech.com/

Elkay
Electrical manufacturer of cable glands, terminal blocks and energy management products.
http://www.elkay.co.uk/

National Electrical Manufacturers Association (NEMA)
Trade association in the U.S. representing the interests of electroindustry manufacturers of products used in the generation, transmission and distribution, control, and end-use of electricity.
http://www.nema.org/

Switchboard Meter
At Hoyt Electrical Instrument Works, all meters (both analog and digital), testers, transducers and various panel-mounted components are built to satisfy the most demanding customers and are built to last in the field.
http://www.hoytmeter.com/