North American Industry Classification System (NAICS) Canada 2017 Version 2.0
- 54 - Professional, scientific and technical services
- 541 - Professional, scientific and technical services
- 5413 - Architectural, engineering and related services
54138 - Testing laboratories
This industry comprises establishments primarily engaged in providing physical, chemical and other analytical testing services. The testing activities may occur in a laboratory or on-site.
|541380Testing laboratories||Testing laboratories|