Electric utilities ranked by customer growth from 2021 to 2025 (10,000+ customers in 2021).
| # | Utility | State | Customer growth 2021-25 | Customers (2025) |
|---|
| 1 | San Diego Community Power | CA | 1,966.0% | 939,547 |
| 2 | First Point Power, LLC | MA | 712.5% | 353,137 |
| 3 | Clean Energy Alliance | CA | 379.2% | 248,536 |
| 4 | Atlantic Energy LLC | TX | 219.3% | 106,120 |
| 5 | AP Holdings LLC | TX | 160.1% | 185,765 |
| 6 | Rhythm Ops LLC | TX | 159.9% | 113,550 |
| 7 | MC Squared Energy Services, LLC | IL | 131.0% | 293,923 |
| 8 | Southern Federal Power, LLC | TX | 122.9% | 24,764 |
| 9 | NextEra Energy Services, LLC | OH | 91.8% | 753,301 |
| 10 | National Gas & Electric, LLC | PA | 90.3% | 24,420 |
| 11 | Santa Barbara Clean Energy | CA | 89.6% | 38,680 |
| 12 | Just Energy | TX | 83.3% | 474,201 |
| 13 | Sunrun Inc. | CA | 81.2% | 796,359 |
| 14 | Pioneer Community Energy | CA | 79.3% | 166,265 |
| 15 | Spruce Finance | CA | 73.4% | 58,914 |
| 16 | American Power & Gas | PA | 60.5% | 124,030 |
| 17 | NTHERM, LLC | PA | 58.0% | 23,551 |
| 18 | Amigo Energy | TX | 54.2% | 156,351 |
| 19 | Young Energy, LLC | TX | 54.0% | 51,776 |
| 20 | Grayson-Collin Elec Coop, Inc | TX | 50.4% | 103,461 |
| 21 | Value Based Brands LLC | TX | 47.2% | 245,378 |
| 22 | Town Square Energy | CT | 44.9% | 85,979 |
| 23 | Orange & Rockland Utils Inc | NY | 44.6% | 218,371 |
| 24 | Spanish Fork City Corporation | UT | 41.9% | 19,613 |
| 25 | City of Lawrenceville - (GA) | GA | 41.5% | 17,053 |
| 26 | Brooklet Energy Distribution | TX | 40.9% | 15,242 |
| 27 | XOOM Energy Texas, LLC | TX | 40.2% | 56,112 |
| 28 | SmartEnergy Holdings, LLC | PA | 39.3% | 199,336 |
| 29 | Champion Energy Services | TX | 36.2% | 229,591 |
| 30 | Ameren Illinois Company | IL | 34.3% | 663,709 |
| 31 | Peace River Electric Coop, Inc | FL | 32.1% | 70,946 |
| 32 | US Retailers, LLC | TX | 31.0% | 456,512 |
| 33 | City of New Braunfels - (TX) | TX | 30.5% | 63,847 |
| 34 | SunPower Capital, LLC | CA | 30.0% | 108,675 |
| 35 | Central Coast Community Energy | CA | 29.7% | 502,000 |
| 36 | AEP Energy | OH | 27.7% | 618,459 |
| 37 | Bartlett Electric Coop, Inc | TX | 27.0% | 16,141 |
| 38 | Farmers Electric Coop, Inc - (TX) | TX | 26.5% | 104,118 |
| 39 | Chariot Energy | TX | 26.3% | 47,568 |
| 40 | Dixie Escalante R E A, Inc | UT | 26.1% | 34,851 |
| 41 | Bluebonnet Electric Coop, Inc | TX | 24.6% | 140,420 |
| 42 | Nueces Electric Cooperative | TX | 24.1% | 56,194 |
| 43 | Boone County Rural EMC | IN | 22.7% | 19,814 |
| 44 | Electrical Dist No3 Pinal County | AZ | 22.5% | 35,562 |
| 45 | City of Monroe - (NC) | NC | 22.3% | 13,733 |
| 46 | Lehi City Corporation | UT | 22.2% | 31,153 |
| 47 | Berkeley Electric Coop Inc | SC | 21.8% | 138,073 |
| 48 | City of Denton - (TX) | TX | 21.4% | 71,027 |
| 49 | Baltimore Gas & Electric Co | MD | 21.1% | 1,221,264 |
| 50 | Town of Apex- (NC) | NC | 20.9% | 31,907 |
| 51 | SFE Energy Pennsylvania, Inc. | PA | 20.9% | 28,484 |
| 52 | Mid-South Electric Coop Assn | TX | 20.8% | 42,522 |
| 53 | Southeastern Electric Coop Inc - (SD) | SD | 20.6% | 24,428 |
| 54 | Denton County Elec Coop, Inc | TX | 20.2% | 337,015 |
| 55 | Tri-County Electric Coop, Inc (OK) | OK | 19.2% | 31,996 |
| 56 | City of Covington - (GA) | GA | 19.2% | 15,388 |
| 57 | Sumter Electric Coop, Inc | FL | 19.2% | 264,730 |
| 58 | Heber Light & Power Company | UT | 19.0% | 16,288 |
| 59 | City of Greenville - (TX) | TX | 19.0% | 18,443 |
| 60 | Horry Electric Coop Inc | SC | 18.9% | 103,949 |
| 61 | Pedernales Electric Coop, Inc | TX | 18.9% | 474,954 |
| 62 | City of Gallatin - (TN) | TN | 18.5% | 27,525 |
| 63 | City of Georgetown - (TX) | TX | 17.8% | 35,103 |
| 64 | Ava Community Energy | CA | 17.6% | 724,515 |
| 65 | Brunswick Electric Member Corp | NC | 17.2% | 118,326 |
| 66 | Wake Electric Membership Corp | NC | 17.2% | 58,987 |
| 67 | Redwood Coast Energy Authority | CA | 17.1% | 61,886 |
| 68 | NineStar Connect | IN | 16.9% | 19,928 |
| 69 | Guadalupe Valley Elec Coop Inc | TX | 16.9% | 107,295 |
| 70 | South Plains Electric Coop Inc | TX | 16.8% | 77,786 |
| 71 | Norris Public Power District | NE | 16.8% | 28,935 |
| 72 | Dynegy Energy Services, LLC | OH | 16.7% | 793,547 |
| 73 | City of Athens - (AL) | AL | 16.7% | 60,474 |
| 74 | Merced Irrigation District | CA | 16.4% | 13,671 |
| 75 | Potomac Electric Power Co | MD | 16.3% | 872,449 |
| 76 | Haywood Electric Member Corp | NC | 16.2% | 31,743 |
| 77 | Direct Energy Services | MA | 15.9% | 1,310,067 |
| 78 | Foley Board of Utilities | AL | 15.9% | 61,343 |
| 79 | City of Opelika - (AL) | AL | 15.9% | 16,321 |
| 80 | Magic Valley Electric Coop Inc | TX | 15.9% | 149,858 |
| 81 | Poudre Valley REA, Inc | CO | 15.7% | 56,750 |
| 82 | Black Hills Power, Inc. | SD | 15.7% | 85,804 |
| 83 | HILCO Electric Cooperative, Inc. | TX | 15.7% | 36,527 |
| 84 | United Power, Inc | CO | 15.5% | 115,479 |
| 85 | Florida Power & Light Co | FL | 15.3% | 6,013,740 |
| 86 | City of McMinnville - (OR) | OR | 15.3% | 21,029 |
| 87 | Sam Houston Electric Coop Inc | TX | 15.3% | 95,874 |
| 88 | City of Chaska - (MN) | MN | 15.2% | 12,376 |
| 89 | City of Idaho Falls - (ID) | ID | 15.1% | 34,150 |
| 90 | Kissimmee Utility Authority | FL | 15.1% | 95,332 |
| 91 | Central Hudson Gas & Elec Corp | NY | 15.1% | 287,197 |
| 92 | Union Rural Electric Coop, Inc | OH | 15.1% | 12,873 |
| 93 | United Electric Coop Service Inc - (TX) | TX | 15.0% | 108,818 |
| 94 | Fall River Rural Elec Coop Inc | ID | 14.9% | 21,316 |
| 95 | Choctawhatche Elec Coop, Inc | FL | 14.7% | 69,476 |
| 96 | Cheyenne Light Fuel & Power | WY | 14.6% | 50,162 |
| 97 | Lee County Electric Coop, Inc - (FL) | FL | 14.5% | 267,019 |
| 98 | Coastal Electric Member Corp - (GA) | GA | 14.5% | 24,730 |
| 99 | Kootenai Electric Cooperative | ID | 14.4% | 33,924 |
| 100 | Central New Mexico El Coop, Inc | NM | 14.4% | 21,230 |
Customer counts from EIA Form 861 for 2021 and 2025. Growth can reflect service-territory expansion or mergers, not only organic growth.