Hennigan Energy Services Group LLC dba Hennigan Engineering Employee Directory

Facilities ServicesMassachusetts, United States11-50 Employees

Hennigan Energy Services Group LLC, doing business as Hennigan Engineering, is a United States–based facilities services firm focused on condenser and heat exchanger cleaning and other specialized work. Founded in 1967 and headquartered in Hingham, Massachusetts, the company serves a broad mix of sectors, including nuclear and fossil power, marine, military, government, municipal, industrial, infrastructure, and construction, with projects conducted domestically and overseas. 

Its service portfolio encompasses testing, inspection, cleaning, coating, and repair activities aimed at maintaining equipment performance and integrity. Notable offerings include leak and hydrostatic testing, pipeline video inspection conducted by its Tunnel Vision Division, hydrodemolition, various condenser and heat exchanger cleaning methods, scrubber cleaning, service-water pipeline cleaning, surface preparation and coatings, water intrusion repair, and high-pressure water blasting. The firm serves power producers, government and military entities, and other industrial and infrastructure customers across the United States and beyond. In March 2021, the company added an Alabama regional manager, reflecting regional expansion.

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