The GSMA is a trade association representing the interests of mobile network operators worldwide. The organization was founded in 1995 and is headquartered in London, England. The GSMA's members include more than 750 mobile operators and over 400 companies in the broader mobile ecosystem, including handset and device makers, software companies, and internet companies. The GSMA's mission is to promote the growth and development of the mobile industry, and to advocate for policies and regulations that support the industry's interests. The organization also hosts the annual Mobile World Congress, the world's largest gathering for the mobile industry.