Testing Laboratories
Key Figures
Figures are published for NAICS 541380 directly.
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Official definition
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.
Source: US Census Bureau, 2017 NAICS Definitions. Public domain.
Which code does this activity belong in?
Testing Laboratories comprises establishments that perform analytical testing on physical, chemical, biological, and other properties of materials, products, or samples. These establishments conduct specialized testing such as acoustics, calibration, electrical, mechanical, or thermal analysis, whether in laboratory facilities or on-site. This code differs from Engineering Services, which provides design and problem-solving expertise, and from Building Inspection Services, which evaluates structures and systems for compliance and safety rather than performing analytical material or product testing.