EX-21 4 a2020-ex21subsidiariesofth.htm EXHIBIT 21 - SUBSIDIARIES OF THE REGISTRANT Document
Exhibit 21
Subsidiaries of the Registrants as of February 17, 2021 (1)

State of Incorporation
Eversource Energy (a Massachusetts business trust) (2)
MA
The Connecticut Light and Power Company (2) (3)
CT
Connecticut Yankee Atomic Power Company (4)
CT
Eversource Energy Service CompanyCT
Eversource Energy Transmission Ventures, Inc.CT
Eversource Gas Transmission LLC
MA
Eversource Gas Transmission II LLC
MA
Eversource LNG Service Company LLC
MA
Northern Pass Transmission LLC
NH
Renewable Properties, Inc.
NH
Eversource Holdco CorporationMA
Eversource Investment LLC
MA
Eversource Investment Service Company LLC
MA
Eversource Water Ventures, Inc.CT
Eversource Aquarion Holdings, Inc.
DE
Aquarion Company
DE
Aquarion Water Company
CT
Aquarion Water Company of Connecticut
CT
Aquarion Water Company of Massachusetts, Inc.
MA
Aquarion Water Capital of Massachusetts, Inc.
DE
Aquarion Water Company of New Hampshire, Inc.
NH
Homeowner Safety Valve Company
DE
HWP CompanyMA
North Atlantic Energy CorporationNH
North Atlantic Energy Service CorporationNH
Northeast Nuclear Energy CompanyCT
NSTAR Electric Company (2) (3)
MA
Harbor Electric Energy Company
MA
Public Service Company of New Hampshire (2) (3)
NH
Properties, Inc.
NH
PSNH Funding LLC 3
DE
The Rocky River Realty CompanyCT
Yankee Atomic Electric Company (4)
MA
Yankee Energy System, Inc.CT
Eversource Gas Company of Massachusetts (3)
MA
Hopkinton LNG Corp.
MA
NSTAR Gas Company (3)
MA
Yankee Gas Services Company (3)
CT



(1)    The names of some of our subsidiaries which, if considered in the aggregate as a single subsidiary, would not constitute a “significant subsidiary,” have been omitted in accordance with Item 601(b)(21)(ii) of Regulation S-K.
(2)    SEC Registrant.
(3)    This entity is doing business as Eversource Energy.
(4)    For The Connecticut Light and Power Company, NSTAR Electric Company and Public Service Company of New Hampshire, investments in Connecticut Yankee Atomic Power Company and Yankee Atomic Electric Company are accounted for under the equity method.