The Leader in Trailer Manufacturing in North America. PJ Trailers was originally established in 1991 and has become the leader in trailer manufacturing in North America. PJ Trailers Canada was incorporated in 2003. It was developed because of the pent-up demand for a high quality trailer line in Canada. PJ Canada started as a single location in Manitoba and has grown to include four warehouse stock points with an extensive dealer network. PJ Trailers Canada prides itself on supplying one of the premier trailer products in the industry.