The Company was founded in 1963 by Ronnie Aitken who began trading as Square Deal Motors from small sites in Meeks Road and Bryson Street Falkirk. He gradually built up a reputation for quality and customer service in the town, building his Ladysmill garage from scratch in 1966. The site opened in 1966 with the Toyota franchise, and today SDM is the longest serving Toyota dealer in the UK. In the 1970's he was joined by his two sons Brian and David and in recent years by Brian's three daughters Helen, Jennie and Lisa. The group now has a state of the art Toyota facility at Ladysmill, Falkirk.