Founded in 1977, MEDEX Assistance Corporation initially focused on providing assistance services and claims administration as an attachment to travel health insurance policies. By 1981, MEDEX had expanded its market share throughout North America, gaining a reputation for premier services and efficiency in resolving cases. It was during this time that MEDEX also entered the insurance market in the United Kingdom. As the global economy expanded, so did the need for the quality assistance services for which MEDEX had become known.