Who owns Mississippi Power?
Mississippi Power is owned by Southern Company (the United States, NYSE: SO).[1]
Evidence: The Southern Company Annual Report on Form 10-K filed 2026-02-19, SEC EDGAR, 19 February 2026. Verified from filings; last checked .
Key facts
- Current owner
- The Southern Company verified
- Owner HQ
- 🇺🇸 United States
- Origin
- 🇺🇸 United States
- Category
- Energy › Power & utilities › Electric utilities
- Parent ticker
- NYSE: SO
- Last verified
- · 1 sources
About Mississippi Power
Mississippi Power is one of three vertically integrated traditional electric operating companies named in Southern Company's 2025 10-K. Southern Company owns all of its outstanding common stock.
What Southern Company's annual report says about Mississippi Power
Sentences about Mississippi Power from Southern Company's latest annual filing[1], copied word for word.
The traditional electric operating companies Alabama Power, Georgia Power, and Mississippi Power are each vertically integrated utilities providing electric service to retail customers in three Southeastern states in addition to wholesale customers in the Southeast.
Estimated costs for 2026 total $653 million for Southern Company, primarily consisting of $256 million for Alabama Power, $360 million for Georgia Power, and $18 million for Mississippi Power.
Mississippi Power has an interchange agreement with Cooperative Energy, a generating and transmitting cooperative, pursuant to which various services are provided.
How often Southern Company names Mississippi Power in its annual report
A plain count of the times the name appears in the text of each annual report, not counting the start of a sentence. A brand that an owner writes about more is usually one it treats as central. The brand is named more often than it was three years earlier.
Ownership timeline of Mississippi Power
- Current owner Southern Company [1] verified
Where Mississippi Power sits in Southern Company
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full Southern Company ownership tree →
See the full Southern Company brand portfolio (7) →
Other brands owned by Southern Company
Southern Company controls 7 brands on Brandtree, 7 of them in energy.
Also in energy
Other brands in electric utilities, and who owns them
The 47 brands in electric utilities on Brandtree belong to 30 owners. The largest is Exelon, with 6; Southern Company has 3.
| Brand | Owner | Owner based in |
|---|---|---|
| Atlantic City Electric | Exelon | 🇺🇸 United States |
| Caribbean Utilities Company | Fortis | 🇨🇦 Canada |
| Empire District Electric | Algonquin Power | 🇨🇦 Canada |
| Chubu Electric Power | Chubu Electric Power | 🇯🇵 Japan |
| Dominion Energy South Carolina | Dominion Energy | 🇺🇸 United States |
| Kentucky Utilities | PPL | 🇺🇸 United States |
| Wisconsin Electric Power Company | WEC Energy Group | 🇺🇸 United States |
| AES Ohio | AES | 🇺🇸 United States |
About the owner: Southern Company
Southern Company is a publicly listed company headquartered in United States. Brandtree records 7 brands under its control, and it is listed as NYSE: SO.
Southern Company's 2025 Form 10-K says it is a holding company that owns all of the outstanding common stock of three traditional electric operating companies (Alabama Power, Georgia Power, Mississippi Power), Southern Power Company and Southern Company Gas. It also owns Southern Company Services, Southern Linc, Southern Nuclear and PowerSecure.
Southern Company: full profile, brands and acquisition history →
🇺🇸 Mississippi Power and other American brands
Brandtree records a controlling owner for 2,399 brands that began in the United States. 461 of them (19%) are now controlled by a company headquartered in another country; Mississippi Power is not one of them.
- AES Ohio — AES 🇺🇸
- Agway Energy Services — Suburban Propane 🇺🇸
- AmeriGas — UGI 🇺🇸
- American Transmission Company — WEC Energy Group 🇺🇸
- Arch Resources — Core Natural Resources 🇺🇸
- Aris Water Solutions — Western Midstream 🇺🇸
Frequently asked questions
Who is the parent company of Mississippi Power?
The parent company of Mississippi Power is Southern Company, a publicly listed company headquartered in the United States.
Is Mississippi Power American?
Yes. Mississippi Power originated in the United States and its owner, Southern Company, is also headquartered in the United States.
Is Mississippi Power still owned by Southern Company?
Yes. As of 9 October 2026, Mississippi Power is still owned by Southern Company. The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] The Southern Company Annual Report on Form 10-K filed 2026-02-19 — SEC EDGAR, SEC Form 10-K, published 19 February 2026; retrieved 5 October 2026.
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