NAICS 561720 to SIC Code Crosswalk
The NAICS code 561720 (Janitorial Services) maps transitively to legacy 1987 SIC classification code(s): 4581, 7342, 7349.
Concordance Concordance Mapping Asset
| Source Code | Source Industry | Target Code | Target Industry | Relation | Concordance Path |
|---|---|---|---|---|---|
| NAICS 561720 | Janitorial Services | SIC 4581 | Airports, Flying Fields, and Airport Terminal Services | Many-to-Many | SIC1987:4581 → NAICS1997:56172 → 2002:561720 → 2007:561720 → 2012:561720 → 2017:561720 → 2022:561720 |
| NAICS 561720 | Janitorial Services | SIC 7342 | Disinfecting and Pest Control Services | Many-to-Many | SIC1987:7342 → NAICS1997:56172 → 2002:561720 → 2007:561720 → 2012:561720 → 2017:561720 → 2022:561720 |
| NAICS 561720 | Janitorial Services | SIC 7349 | Building Cleaning and Maintenance Services, NEC | Many-to-Many | SIC1987:7349 → NAICS1997:56172 → 2002:561720 → 2007:561720 → 2012:561720 → 2017:561720 → 2022:561720 |
Why Concordances Don't Line Up 1:1
The Standard Industrial Classification (SIC) system was established in 1937 and last updated in 1987, organizing businesses by end products. The North American Industry Classification System (NAICS) replaced it in 1997, classifying establishments by production processes. Because of this structural shift, many-to-many relationships are common, requiring chained concordance steps to bridge the historical gap.
Reverse Crosswalk: Going the other way? See the mapping at SIC 4581 to NAICS, SIC 7342 to NAICS, SIC 7349 to NAICS.
Related Pages & Tools
- NAICS Code 561720 Profile — Official definition, SBA size standards, and establishment statistics.
- Sector 56 Hub (Administrative and Support and Waste Management and Remediation Services) — Category directories.
- Interactive Crosswalk Engine — Convert any SIC or NAICS code dynamically.
Primary Ingestion Source
Data sourced from the U.S. Census Bureau Concordances (1997, 2002, 2007, 2012, 2017, and 2022 editions). Last verified on 2026-06-30.