Valued Partner. Trusted Employer.

Headquartered in North Billerica, MA, Interstate Electrical Services Corporation is the largest privately held electrical services company serving greater New England.

Founded in 1966, Interstate has offices in all six New England states, 900+ employees, and a fleet of 250+ vehicles. The company’s 100,000-square-foot UL Certified Operations Center, located in Tewksbury, MA, houses the largest electrical prefabrication facility in New England.

Interstate provides electrical construction, in-house engineering and design, BIM, 24/7 emergency service, thermal diagnostic imaging, arc flash diagnostic imaging, UL Certified fire alarm testing, building and process controls, central station monitoring, and telecom/network systems to commercial customers.

For over 55 years, the company has dedicated itself to exceeding expectations on every project for every customer.