Harrens Lab Inc. Breakwater Avenue, Hayward, Alameda County, California, United States Member since July 24, 2024
Prime Analytical Laboratories, LLC Nelson Avenue, Concord, Contra Costa County, California, United States Member since April 27, 2025
Vanguard Laboratory Parkmont Lane Southwest, Olympia, Thurston County, Washington, United States Member since December 26, 2024
ATL – A Bureau Veritas Company Cornell Place, Cincinnati, Hamilton County, Ohio, United States Member since June 17, 2024
West Texas Analytical Laboratory, LLC North Price Road, Pampa, Gray County, Texas, United States Member since May 24, 2024
IRIS ENVIRONMENTAL LABORATORIES LLC US Highway 22 And 3, Union, Union County, New Jersey, United States Member since February 12, 2025
Environmental Processes Aqua Solutions Inc. Chicago, Cook County, Illinois, United States Member since June 3, 2025
ResInnova Laboratories Fishers Lane, Rockville, Montgomery County, Maryland, United States Member since April 2, 2024