Like a little acorn, Oak Harbor Freight Lines has grown -- into a mighty interstate less-than-truckload (LTL) carrier. (LTL carriers consolidate cargo from multiple shippers into a single truckload.) The company operates from about 35 terminals in California, Idaho, Nevada, Oregon, and Washington; it maintains a fleet of some 500 tractors and 1,800 trailers. It serves the rest of the US through partnerships with LTL carriers such as Dayton Freight, Honolulu Freight Service, New England Motor Freight, and Southeastern Freight Lines. Oak Harbor is owned and run by brothers David and Edward Vander Pol. The company was founded in 1916 and acquired by the Vander Pol family in 1936.