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Largest public utilities in the United States

The 50 largest public utilities in the United States

The 50 largest public utilities in the United States by revenue range from $616 million down to $9.9 million.

The largest are Midcontinent Independent System Operator Inc, Electric Reliability Council Of Texas Inc 10-10-90, and Southern Maryland Electric Cooperative Inc.

Organizations
673
Total revenue
$5.5B
Total assets
$20.5B

Largest public utilities in the United States

Ranked by revenue.

Midcontinent Independent System Operator Inc
Electric Reliability Council Of Texas Inc 10-10-90
Southern Maryland Electric Cooperative Inc
Clay Electric Cooperative Inc
Cooperative Energy Incorporated
New York Independent System Operator Inc
Horry Electric Cooperative Inc
Mpd Electric Cooperative Inc
Laurens Electric Cooperative Inc
Upper Cumberland Electric Membership Corporation
Georgia Energy Cooperative An Electric Membership Corporation
Sulphur Springs Valley Electric Cooperative Inc
Institute Of Nuclear Power Operations
Moon Lake Electric Association Inc
Georgia System Operations Corporation
Roughrider Electric Cooperative Inc
Altamaha Electric Membership Corporation
Iowa Lakes Electric Cooperative
District Energy St Paul Inc
Green Power Emc
PPeninsula Generation Cooperative
Edisto Electric Cooperative Inc
Rushshelby Energy Rural Electric Cooperative Inc
Carroll White Remc
Lewis And Clark Rural Water System Inc
Freestate Electric Cooperative Inc
Southern Indiana Rec Inc
United Electric Cooperative Inc
Breakthrough Energy Foundation
Mille Lacs Energy Cooperative
Steuben County Rural Electric Membership Corporation
Reliabilityfirst Corporation
Midwest Reliability Organization Inc
SSpringer Electric Cooperative Inc
Marshall County Rural Electric Membership Corp
Texas Reliability Entity Inc
SSchool And Municipal Energy Cooperative Of Western New York
Niobrara Electric Association Inc
Raccoon Valley Electric Cooperative
Arkansas Utility Protections Service Inc
Harrison County Rural Electric Cooperative
Bridger Valley Electric Association Inc
Western Water Company
YYuma County Water Users Association
Mcdonough Power Cooperative Inc
Columbia Basin Electric Cooperative Inc
Miss Dig System Inc
Griffiss Utility Services Corporation
GGrundy County Rural Electric Cooperative
SSoutheast Rural Community Assistance Project Inc
Public data from IRS Form 990 e-file & Business Master File. A 990 shows how an organization is run and funded — not its real-world outcomes. Figures are presented without evaluation; we do not rate, score, or rank organizations. · philanthropy.org