The tourism sector is the main activity of Grupo Martinón. This sector makes up 94% of the Group.

Within this sector, Grupo Martinón focuses on the design, construction and operation of hotels and tourist resorts, both managing and operating their own and other large hotel groups, owners of reputable brands such as the Spanish companies Meliá Hotels and NH Hotels. Likewise with foreign companies’ with a high reputation such as AM Resorts, part of the group's tour operator Apple Vacations, which is the latest of the Group's strategic ventures to open into the U.S. market.