It was 1949 when Diamond Transportation System finally became incorporated. In the following years Diamond enjoyed many successes, but in 1952 a steel strike created problems and resulted in temporarily halting the trucking operation. L. R. Jenkins kept his fleet busy by hauling army surplus from Duluth, MN to Aurora, IL and a number of other shipping points during this period. At that time Diamond was operating in only a 10 state area. In 1953, Diamond obtained operating authority to operate in the 48 states.

Today, Diamond Transportation System, Inc. provides service to its' customers throughout the United States and all of Canada as one of the leading specialized carriers in the country. Diamond is still family owned and operated by two of L. R. and Valeria Jenkins' sons, Richard and Harvey Jenkins. Richard (Buck) and Harvey have been working in the company since 1953 and 1964, respectively.

Diamond maintains a strong working relationship with the Case Corporation as one of its' leading carriers of farm tractors. Over the years, Diamond has expanded to include John Deere, New Holland, Fiat Allis and Belarus just to name a few, along with being a 100% Owner Operator Company. Our dedication to our customers and our contractors will carry us well into the next millennium.