Ambulatory Surgery Center Associations (ASCA)
- * ACA International
- * Ambulatory Surgery Center Association (ASCA)
- * Ambulatory Surgery Center Association of Illinois (ASCAI)
- * Arizona Ambulatory Surgical Center Association (AASCA)
- * Better Business Bureau of Orange County, California
- * Better Business Bureau of South County, California
- * California Ambulatory Surgery Association (CASA)
- * California Association of Collectors (CAC)
- * Colorado Ambulatory Surgery Center Association (CASCA)
- * Florida Society of Ambulatory Surgery Centers (FSASC)
- * Healthcare Financial Management Association (HFMA)
- * Missouri Ambulatory Surgery Center Association (MASCA)
- * Nevada Ambulatory Surgery Center Association (NASCA)
- * Ohio Association of Ambulatory Surgery Centers (OOASC)
- * Oklahoma Ambulatory Surgery Center Association (OASCA)
- * Texas Ambulatory Surgery Center (TASCS)