All Brands Owned by Eversource Energy

What does Eversource Energy own?

It owns regulated electric transmission and distribution utilities and natural gas distribution utilities serving Connecticut, Massachusetts, and New Hampshire. Subsidiaries include Connecticut Light and Power, NSTAR Electric, Public Service Company of New Hampshire, Western Massachusetts Electric, NSTAR Gas, and Yankee Gas. It sold its water utility, Aquarion, in June 2026.

Is Eversource Energy publicly traded?

Yes. Eversource trades on the New York Stock Exchange under the ticker ES and is a member of the S&P 500. Shares are broadly held by institutional investors, and no controlling owner exists.

Who founded Eversource Energy?

The company is a merged entity rather than a founder-driven business. Its predecessor, Northeast Utilities, formed in 1966 by combining Connecticut Light and Power, Western Massachusetts Electric, and Holyoke Water Power. The Eversource name dates to the 2015 rebrand.

Where is Eversource Energy headquartered?

Eversource Energy is headquartered in Hartford, Connecticut, USA. It also maintains major operations centers in Boston, Massachusetts, and Springfield, Massachusetts, reflecting its three-state service territory.

How many brands does Eversource Energy own?

Effectively one. All customer-facing service operates under the Eversource brand, while legacy names like CL&P and NSTAR remain as subsidiary legal names. Aquarion Water was sold to a public authority in June 2026.

Who owns Eversource Energy?

Public shareholders own Eversource. Institutional investors hold most of the outstanding shares, and there is no controlling family, founder, or government owner. Joseph Nolan serves as chairman, president, and chief executive officer.