NAICS Code Description



54138 - Testing Laboratories

Top Businesses by Annual Sales for 54138 – Click for Complete Profiles:

Charles River Labs Intl IncIntertek Group Inc
SGS North America IncAnalytical Pace Services LLC
SGS US Holding IncNational Technical Systems Inc
Charles Stark Draper Lab IncElements Inc
Wyle Laboratories IncAmspec LLC

See industry description for 541380.

NAICS Codes that fall under 54138 - Testing Laboratories