Braintree Electric Light Department (BELD) supplies electric service to the township of Braintree, Massachusetts. BELD was founded in 1892 by Thomas Watson and is one of the oldest departments in the country.

Copley Controls is driven by the pursuit of innovation and committed to providing cutting-edge automation and manufacturing solutions that enable customers to thrive. The products are used in a variety of applications, from sterile labs to sub-zero outdoor environments, allowing major industries to perform more effectively and efficiently.

The General Electric Company (GE) is an American multinational company. For more than 125 years, GE has invented the future of industry. Today, GE is best known for its work in the Power, Renewable Energy, Aviation and Healthcare industries.

Sensata Technologies is a supplier of sensing, electrical protection, control, and power management solutions with operations and business centers in 13 countries. Sensata's products improve safety, efficiency, and comfort for millions of people every day in automotive, appliance, aircraft, industrial, military, heavy vehicle, heating, air-conditioning and ventilation, data, telecommunications, vehicle, and marine applications.

UEC is a manufacturer of durable and reliable WirelessHART gas detectors; pressure, temperature, vacuum, electromechanical, and electronic smart switches; safety transmitters; controls; and sensors. Focused on providing protection to equipment, processes, and personnel in a variety of industrial applications, their products range from simple units to highly specialized custom designs.