NAICS Code Description

54138 - Testing Laboratories

*Click to View Top Businesses by Revenue for 54138 – Complete Profiles*.

See industry description for 541380.

NAICS Codes that fall under 54138 - Testing Laboratories

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

Charles River Labs Intl IncWilmingtonMA
SGS North America IncRutherfordNJ
SGS US Holding IncRutherfordNJ
Charles Stark Draper Lab IncCambridgeMA
Wyle Laboratories IncTorranceCA
Intertek Group IncArlington HeightsIL
Analytical Pace Services LLCMinneapolisMN
National Technical Systems IncAnaheimCA
Elements IncGlendale HeightsIL
Amspec LLCCranburyNJ