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Eversource Energy

One of the largest energy delivery companies in New England, Eversource runs the electric, natural gas, and water systems that keep homes and businesses in Connecticut, Massachusetts, and New Hampshire powered and warm. Its roots trace to 1966, when three older New England utilities merged to form Northeast Utilities, which renamed itself Eversource in 2015 to unite all its once-separate local brands under a single banner. Fun quirk: the made-up name is a portmanteau meant to suggest "everlasting source" of energy, and the company has dated back through chains of consolidation to utilities first built in the 1800s.