According to Wikipedia, A Destination Management Company (DMC) is a term for a professional services company possessing extensive local knowledge, expertise and resources, specializing in the design and implementation of events, activities, tours, transportation and program logistics.
A DMC provides a ground service based on local knowledge of their given destinations. These services can be transportation, hotel accommodation, restaurants, activities, excursions, conference venues, themed events, gala dinners and logistics, meetings, incentive schemes as well as helping with overcoming language barriers. By acting as purchasing consortia, DMCs can provide preferential rates based on the buying power they have with their preferred suppliers.
While the term DMC is being widely used to identify a travel trade professional service, the service being offered is essentially the use of those ingredients, services and products already available at a particular destination and to which the user has provided no contribution other than use. These functions are performed by Travel Agents and Tour operators.