Pro-Pack Testing Laboratory, Inc. Amann Drive, Belleville, St. Clair County, Illinois, United States Member since October 9, 2025
Materials Analytical Services Lakefield Court, Suwanee, Forsyth County, Georgia, United States Member since February 7, 2025
International RINP, Inc. Verdugo Drive, Laguna Hills, Orange County, California, United States Member since July 26, 2024
Element Materials Technology 3701 Port Union Road, Fairfield, OH, US, 45014 Member since April 6, 2026
Metallurgical Associates, Inc. 1515 Paramount Drive, Suite 1, Waukesha, Wisconsin, US, 53186 Member since April 6, 2026