Tentamus North America Spotsylvania Avenue, Fredericksburg, Spotsylvania County, Virginia, United States Member since February 2, 2025
TÜV Rheinland of North America Southeast Otis Corley Drive, Bentonville, Benton County, Arkansas, United States Member since May 21, 2024
Certified Laboratories – Burbank North Damon Way, Burbank, Los Angeles County, California, United States Member since July 7, 2024
Rapid Results Laboratories LLC Sandy Plains Road, Ste 103, Marietta, United States Member since January 5, 2026
CHROMESSENCE Carrer Pompeu Fabra, La Garriga, Barcelona, Catalunya, Spain Member since August 6, 2025
ResolveMass Laboratories Inc. Boulevard Cartier Ouest, Laval, Laval, Québec, Canada Member since October 23, 2025
ProVerde Environmental Milford, Worcester County, Massachusetts, United States Member since October 28, 2025