The Slotegraaf Group of Companies has its beginnings in March of 1966 in a two bay service station at the corner of King and Eagle Street in the town of Preston. In 1968 the business was relocated to the corner of Eagle St. and Industrial Rd. The business continued to grow and a number of expansions began to take place. The business operated as an all makes repair facility until 1993 when the Mack franchise was acquired.

The London Mack dealership opened in 1994 in a leased facility and was relocated in 1999 to a new facility at the corner of Size Rd. and Wilton Grove Rd. In 1996 a body shop  and P.D.I. centre was constructed at 750 Industrial Rd, complete with a 60 foot paint booth, frame straightening equipment and an electronic alignment rack. In the spring of 1999, the Company had the opportunity to expand into the Toronto market and Peel Mack was established. Later that year, another market place became available and Stoney Creek Mack was formed. In 2002, the Volvo franchise in Toronto became available and was added to the Slotegraaf Group of Companies under the name Performance Equipment Limited.

As the Mack dealership in Cambridge continued to grow, a new facility was opened at the corner of Franklin Blvd and Sheldon St. Cambridge Mack also became an Allison Automatic Transmission and Cummins Engine certified dealer. Hino Trucks were added to the location in Cambridge in 2004 under the name Performance Hino.

The Slotegraaf Group of Companies has never stood still and presently operates out of six locations and employs approximately 270 people.

"We service the industry; that serves the nation."