About MarineMax | Headquartered in Clearwater, Florida, MarineMax is the nation’s largest recreational boat and yacht retailer. Focused on premium brands, such as Sea Ray, Boston Whaler, Meridian, Cabo, Hatteras, Azimut Yachts, Grady-White, Bayliner, Nautique and Malibu, MarineMax sells new and used recreational boats and related marine products and provides yacht brokerage services..