| FULL members – click on flag to visit their website | |
 | Day Hospitals Australia |
 | Ambulatory Surgery Center Association (ASCA) |
 | Belgian Association of Ambulatory Surgery (BAAS) |
 | Brazilian Society of Ambulatory Surgery (SOBRACAM) (Sociedade Brasileira de Cirurgia Ambulatorial) |
 | British Association of Day Surgery (BADS) |
 | China Ambulatory Surgery Alliance（CASA） |
 | Croatian Society for Day Surgery |
 | Danish Association of Day Surgery (DSDK) (Dansk Selskab for Dagkirurgi) |
 | Dutch Association of Day Care & Short Stay (NVDK) (Nederlandse Vereniging Voor Dagbehandeling En Kortverblijf) |
 | Finnish Ambulatory Anaesthesiologists Suomen Päiväkirurgiset Anestesiologit (SUOPA) |
| Finnish Association for Ambulatory Surgery (Nursing) |
 | French Association of Ambulatory Surgery (AFCA) (Association Française de Chirurgie Ambulatoire) |
 | German Association for Ambulatory Surgery (BAO) (Bundesverband für Ambulantes Operieren e.V.) |
 | Hungarian Association of Ambulatory Surgery (HAAS) |
 | Indian Association of Day Surgery |
 | Italian Federation of Ambulatory Surgery (FIDS) |
 | Japanese Short Stay Surgery Association (JSSSA) |
 | Norwegian Day Surgery Association (NORDAF) (Norsk Dagkirurgisk Forum) |
 | Portuguese Association of Ambulatory Surgery (APCA) (Associação Portuguesa de Cirurgia Ambulatória) |
 | Society of Ambulatory Anaesthesia (SAMBA) |
 | Spanish Association of Major Ambulatory Surgery (ASECMA) (Asociación Española De Cirugía Mayor Ambulatoria) |
| Associate members | |
| Italian Association of Private Day Surgery Hospitals Italian Society of Ambulatory Surgery and Day Surgery (SICADS) |
| Corresponding Members | |
 | Peruvian Association of Ambulatory Surgery (APCACE) |
 | Romanian Association of Ambulatory Surgery (RAAS) |