# NAICS 541380: Testing Laboratories and Services

The SBA size standard for NAICS 541380 is $19,000,000 in average annual receipts (13 CFR 121.201).

| Field | Value |
| --- | --- |
| Code | 541380 |
| Title | Testing Laboratories and Services |
| Level | 6 |
| Parent | 54138 |
| Size standard | $19,000,000 in average annual receipts |
| Footnote | - |

## Description

This industry comprises establishments primarily engaged in performing physical, chemical, and other analytical testing services, such as acoustics or vibration testing, assaying, biological testing (except medical and veterinary), calibration testing, electrical and electronic testing, geotechnical testing, mechanical testing, nondestructive testing, or thermal testing. The testing may occur in a laboratory or on-site.

## 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/541380/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

Independent. Not affiliated with, endorsed by or sponsored by GSA, SAM.gov or any U.S. government agency. Registering in SAM.gov is free at sam.gov.

Get a free API key: https://samgovapi.io/sign-up?ref=ai-claudebot