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Electronic Data Gathering, Analysis, and Retrieval system. The SEC platform where public firms submit filings, classifying filers by legacy SIC categories.

• How SEC EDGAR Uses SIC Codes for Public Company Classification — A compliance guide explaining how the SEC assigns primary industrial classifications to filers and how it impacts regulatory searches.
• SIC ↔ NAICS Concordance Crosswalk — Search and map old SIC codes to modern formats.

1. U.S. Securities and Exchange Commission (SEC): SEC EDGAR Filer Standard Industrial Classification Codes