Have a look at Sun Siyam resorts, Atmosphere resorts, Crown and Champa Resorts and Coastline Maldives are all Maldivian owned majority and have all classes of resorts. Universal resort owners have collective and individually owned resorts too. Each resort caters to different level of service and clientele. Amilla is probably one of the most well known ones. And the newly opened Loabi Gilli which has I think the biggest underwater restaurant in the Maldives.