# NAICS 561: Administrative and Support Services

No SBA size standard is recorded for NAICS 561.

| Field | Value |
| --- | --- |
| Code | 561 |
| Title | Administrative and Support Services |
| Level | 3 |
| Parent | 56 |
| Size standard | - |
| Footnote | - |

## Description

Industries in the Administrative and Support Services subsector group establishments engaged in activities that support the day-to-day operations of other organizations. The processes employed in this sector (e.g., general management, personnel administration, clerical activities, cleaning activities) are often integral parts of the activities of establishments found in all sectors of the economy. The establishments classified in this subsector have specialization in one or more of these activities and can, therefore, provide services to clients in a variety of industries and, in some cases, t

## Sources

- Census NAICS: https://www.census.gov/naics/
- SBA size standards: https://www.sba.gov/document/support-table-size-standards

## API and MCP

- REST: GET https://samgovapi.io/api/v1/naics/561/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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