SEC Exhibit 21Company filing
The Southern Company Exhibit 21 — Subsidiaries
The Southern Company · Feb 19, 2026
Company-filed list of significant subsidiaries. The filing may omit subsidiaries that are not considered significant under SEC rules.
EnergyPaper Trail research
The Southern Company
The Southern Company is an organization in the Energy sector. Paper Trail tracks its public-money, lobbying, campaign-finance, corporate, and People relationships where supported by public records.
At a Glance
Highlights from available records. Missing information does not mean an activity did not occur.
Editorial context
Why It Is Included
Included as a major institution relevant to Paper Trail research; individual public-record connections appear only when sourced.
Document library
Important Documents
Selected filings, reports, contracts, court records, and other documents useful for understanding this organization.
Documentation
Sources
For researchers
Cite this page
The Paper Trail Project. “The Southern Company.” Accessed November 7, 2026. https://www.papertrailproject.org/profiles/southern-company
Record last updated 2026-09-02. Sources: Official organization website. Verify consequential claims against the linked original records.