Established in 1966, Marine Systems, also known as MSI, offers a range of support services for marine vessel operations. The company specializes in providing a variety of diesel engine repair and remanufacturing services. It also offers replacement parts for tug and fishing boats, dredges, power plants and utilities. Marine Systems provides 24-hour block welding and machining and laser alignment services. The company utilizes products from various companies, such as Detroit Diesel, John Deere, Caterpillar and Electro Motive Diesel. It has operations in Kentucky, Florida, Texas and Alabama. Kirby Corporation is a part of Marine Systems, which is one of the leading inland tank barge operators in the United States.