SIC 7381 — Detective, Guard, and Armored Car Services
Description & Classification
SIC code 7381 representing 'Detective, Guard, and Armored Car Services' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 561611 - Investigation and Personal Background Check Services (via SIC1987:7381→NAICS1997:561611→2002:561611→2007:561611→2012:561611→2017:561611→2022:561611)
- NAICS 561613 - Armored Car Services (via SIC1987:7381→NAICS1997:561613→2002:561613→2007:561613→2012:561613→2017:561613→2022:561613)
- NAICS 561612 - Security Guards and Patrol Services (via SIC1987:7381→NAICS1997:561612→2002:561612→2007:561612→2012:561612→2017:561612→2022:561612)
Classification Details
| SIC Code | 7381 |
|---|---|
| Industry Title | Detective, Guard, and Armored Car Services |
| Division | Division I: Services |
| Major Group | Major Group 73: Business Services |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 7381:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 73 Hub — View other legacy industries in this business division.
Related Industries in Major Group 73
Frequently Asked Questions (FAQ)
What industry does SIC code 7381 represent?
SIC 7381 is 'Detective, Guard, and Armored Car Services', a 4-digit Standard Industrial Classification (SIC) code under Major Group 73: Business Services (Division I: Services); it maps to modern 2022 NAICS code(s): 561611 (Investigation and Personal Background Check Services), 561613 (Armored Car Services).
What is the modern 2022 NAICS mapping for SIC 7381?
SIC code 7381 maps to modern NAICS codes: 561611 - Investigation and Personal Background Check Services, 561613 - Armored Car Services, 561612 - Security Guards and Patrol Services.