GSA co-operates with and supports other key organisations including:
• APT IMT-2000 Forum www.aptsec.org
• Cellular Operators Association of India (COAI) www.coai.com
• European Telecommunications Standards Institute (ETSI) www.etsi.org
• European Commission www.europa.eu.int
• GSM Association www.gsmworld.com
• Infocommunication Services Market Participants Union (ICU) www.infocomunion.ru
• International Telecommunication Union www.itu.int/home/
• ITESAP www.itesap.com
• 3GPP www.3gpp.org