In operation for nearly 50 years, Middleton Marine provides a variety of repair and overhauling services for boats and sports fishing vessels. The company offers services for engines of various brands, including Cruisair, Westerbeke and Mercruiser. It is a part of Dog River Marina Complex, which features a range of Shell fuel and marine products. Dog River Marina Complex specializes in free wireless Internet, 24-hour security and fiberglass repair services. The company also provides carpentry, aluminum welding and installation solutions. It has restaurants, stores and car rental agencies in close proximity. Dog River Marina Complex sells engines and generators. The company operates a fuel dock that offers various amenities, as well as lubricants. Middleton Marine is located in Mobile, Ala.