Smit Internationale N.V. (or Smit International) is a Dutch company operating in the maritime sector. The company was founded in 1842 by Fop Smit as a towage company with only the 140 horsepower paddle steamer tug Kinderdijk.Fop's sons, Jan and Leendert, continued the company under the name L.Smit &Co and expanded the fleet. In 1870, they began using tugs with propellers.After a merger in 1923 with Internationale Sleepdienst, the name was changed to "L. Smit & Co.'s Internationale Sleepdienst".