Canada
Alberta Speleological Society, British Columbia Speleological Federation, Central Island Caving Club, Nibelungen Speleo Club, Speleological Society of Manitoba, The Under Achievers Cave Exploration Group, Toronto Caving Group, Vancouver Island Cave Exploration Group
Mexico
AE Vertigo Mexico - Espeleologia Caving, Association for Mexican Cave Studies, Grupo de Exploracion Ox Bel Ha, Mexico Profundo, Proyecto Cerro Rabón, Quintana Roo Speleological Survey
United States
Alabama, Georgia, Indiana, Kentucky, Missouri, New York, Ohio, Pennsylvania, Tennessee, Texas