General information about boat manufacturers. A boat manufacturer is a company or a manufacturer that specializes in designing, developing, producing, and selling boat products. This can include a wide range of boat types, such as recreational boats, motorboats, sailboats, speedboats, fishing boats, yachts, and other water sports vessels. A boat manufacturers may have its own brand and model series, and can also produce custom vessels according to the customer's specifications and desires. Boat manufacturers can also offer services such as maintenance, repair, upgrading, and customization of boat products.