AB Sciex LLC
Advanced Environmental Testing
AES Laboratories Pvt. Ltd.
Agdia Inc.
Agilent Technologies Inc.
AirMD Inc.
Alex Stewart International (ASI)
Alpha Analytical Inc.
ALS Limited
American Environmental Testing Laboratory
LLC.
Analabs Inc.
Analytik Jena AG ( Endress+Hauser AG)
Aquaread Ltd
Aralab
AsureQuality
Bio-Rad Laboratories Inc.
bioMerieux SA
Bureau Veritas SA
Bruker Corporation
Bureau Veritas SA
Celestica Inc.
Centre Testing International
Charles River Laboratories International Inc.
Covance Inc.
DGT Research Ltd
Drew Marine USA Inc.
EAG Laboratories
Element Materials Technology Group Limited
EMSL Analytical Inc.
Environmental Testing Inc.
Eurofins Scientific
Exova Group Limited
Hydrologic Associates
Intertek Group plc
JEOL
Ltd.
LGC Limited
MDS Analytical Technologies (US) Inc. ( Danaher Corporation)
Merck KGaA
Merieux Nutrisciences Corporation
Microbac Laboratories Inc.
Pace Analytica
Pace Analytical Services
LLC
PerkinElmer Inc.
Premier Analytical Services
R J Hill Laboratories Ltd.
Romer Labs Division Holding GmbH
Shimadzu Corporation
Societe Generale de Surveillance SA (SGS SA)
Suburban Testing Labs
Symbio Laboratories Pty Ltd.
Thermo Fisher Scientific Inc.
TUV SUD AG
UL LLC
Waters Corporation