On the Record · Southern
Southern subsidiaries, as it lists them
The subsidiaries Southern lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| The Southern Company | Delaware |
| Alabama Power Company | Alabama |
| Alabama Property Company | Alabama |
| Southern Electric Generating Company | Alabama |
| Georgia Power Company | Georgia |
| Southern Electric Generating Company | Alabama |
| Mississippi Power Company | Mississippi |
| Southern Power Company | Delaware |
| SP Deuel Harvest Wind Energy Class B Holdings, LLC | Delaware |
| SP Deuel Harvest Wind Energy Holdings, LLC | Delaware |
| Deuel Harvest Wind Energy Holdings, LLC | Delaware |
| Deuel Harvest Wind Energy, LLC | Delaware |
| SP Diamond State Class B Holdings, LLC | Delaware |
| Diamond State Generation Partners, LLC | Delaware |
| Beech Ridge Energy II Holdings, LLC | Delaware |
| Beech Ridge Energy II, LLC | Delaware |
| SP Skookumchuck Investment, LLC | Delaware |
| SP Skookumchuck Holdings, LLC | Delaware |
| SP Skookumchuck Wind Energy Project, LLC | Delaware |
| Reading Wind Energy Class B Holdings, LLC | Delaware |
| Reading Wind Energy Holdings, LLC | Delaware |
| Reading Wind Energy, LLC | Delaware |
| SP Roserock Investment, Inc. | Delaware |
| RE Roserock Holdings, LLC | Delaware |
| RE Roserock LLC | Delaware |
| Southern Renewable Energy, Inc. | Delaware |
| Glass Sands Wind Energy, LLC | Delaware |
| SP Wildhorse Class B Holdings, LLC | Delaware |
| SP Wildhorse Holdings, LLC | Delaware |
| Wildhorse Wind Energy, LLC | Delaware |
| SP Solar GP, Inc. | Delaware |
| SP Solar Holdings I, LP | Delaware |
| SP Solar Storage Class B Holdings, LLC | Delaware |
| SP Solar Storage OpCo, LLC | Delaware |
| SP Garland Solar Storage, LLC | Delaware |
| SP Tranquillity Solar Storage, LLC | Delaware |
| BNB Lamesa Solar, LLC | Delaware |
| East Pecos Solar, LLC | Delaware |
| SP Butler Solar, LLC | Delaware |
| SP Butler Solar Farm, LLC | Delaware |
| SP Decatur County Solar, LLC | Delaware |
| SP Decatur Parkway Solar, LLC | Delaware |
| SP Pawpaw Solar, LLC | Delaware |
| SP Sandhills Solar, LLC | Delaware |
| SP Solar Farms, LLC | Delaware |
| Adobe Solar, LLC | Delaware |
| Apex Nevada Solar, LLC | Delaware |
| Calipatria, LLC | Delaware |
| Campo Verde Solar, LLC | Delaware |
| Granville Solar, LLC | Delaware |
| Macho Springs Solar, LLC | Delaware |
| Macho Springs Solar 2, LLC | Delaware |
| Morelos Solar, LLC | Delaware |
| Rutherford Farm, LLC | Delaware |
| Spectrum Nevada Solar, LLC | Delaware |
| SP Cimarron I, LLC | Delaware |
| SP Cimarron Capital, LLC | Delaware |
| Southern Renewable Partnerships, LLC | Delaware |
| BSP Holding Company, LLC | Delaware |
| Boulder Solar Power Parent, LLC | Delaware |
| Boulder Solar Power, LLC | Delaware |
| Desert Stateline Holdings, LLC | Delaware |
| Desert Stateline, LLC | Delaware |
| Lost Hills Blackwell Holdings, LLC | Delaware |
| Lost Hills Solar Holdco, LLC | Delaware |
| Lost Hills Solar, LLC | Delaware |
| Blackwell Solar Holdings, LLC | Delaware |
| Blackwell Solar, LLC | Delaware |
| NS Solar Holdings, LLC | Delaware |
| North Star Solar, LLC | Delaware |
| Parrey Holding Company, LLC | Delaware |
| Parrey Parent, LLC | Delaware |
| Parrey, LLC | Delaware |
| RE Silverlake Holdings, LLC | Delaware |
| RE Garland Holdings LLC | Delaware |
| RE Garland, LLC | Delaware |
| RE Garland A, LLC | Delaware |
| RE Tranquillity Holdings, LLC | Delaware |
| RE Tranquillity, LLC | Delaware |
| RE Tranquillity BAAH, LLC | Delaware |
| SG2 Holdings, LLC | Delaware |
| SG2 Imperial Valley LLC | Delaware |
| SP Wind Holdings II, LLC | Delaware |
| Bethel Wind Farm Class B Holdings LLC | Delaware |
| Bethel Wind Farm Holdings LLC | Delaware |
| Bethel Wind Farm LLC | Delaware |
| Grant Plains Wind, LLC | Delaware |
| Grant Wind, LLC | Delaware |
| Grant County Interconnect, LLC | Delaware |
| Kay Wind, LLC | Delaware |
| Passadumkeag Windpark, LLC | Delaware |
| Salt Fork Wind, LLC | Delaware |
| Tyler Bluff Wind Project, LLC | Delaware |
| WWH LLC | Delaware |
| Wake Wind Class B Holdings LLC | Delaware |
| Wake Wind Holdings LLC | Delaware |
| Wake Wind Energy LLC | Delaware |
| SP TEP Class B Holdings I, Inc. | Delaware |
| SP Gaskell West 1 Class B Holdings, LLC | Delaware |
| SP Gaskell West 1 Holdings, LLC | Delaware |
| RE Gaskell West 1, LLC | Delaware |
| SP Wind Development Holdings, LLC | Delaware |
| SP TEP Formations, Inc. | Delaware |
| SP Cactus Flats Class B Holdings, LLC | Delaware |
| Cactus Flats Holdings, LLC | Delaware |
| SP Cactus Flats Wind Energy, LLC | Delaware |
| Millers Branch Solar, LLC | Delaware |
| South Cheyenne Solar, LLC | Delaware |
| Southern Company Gas | Georgia |
| Southern Company Gas Capital Corporation | Alabama |
| Atlanta Gas Light Company | Georgia |
| Georgia Natural Gas Company | Georgia |
| SouthStar Energy Services LLC | Delaware |
| Ottawa Acquisition LLC | Illinois |
| Northern Illinois Gas Company | Illinois |
| Southern Company Gas Investments, Inc. | Georgia |
| Southern Company Gas Pipeline Holdings LLC | Georgia |
| Evergreen Enterprise Holdings LLC | Georgia |
| Virginia Natural Gas, Inc. | Georgia |
From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from Southern’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-19. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.