Andrew Simpson established Simpson's Antiques in 1978 and was one of the first antique dealers to specialise in 19th century Australian furniture. He is currently the country's foremost dealer in early colonial furniture, consulting on, Australian Colonial Furniture and Decorative Arts for collecting institutions and private clients nationally.

A member of the Australian Antique Dealers Association, Andrew Simpson was instrumental in the formation of the Australiana Society, a forum for collectors and enthusiasts alike. Andrew was a co-author of Australian Art Pottery 1900-1950 (2004) and Nineteenth Century Australian Furniture (1985) and Australian Furniture Pictorial History and Dictionary 1788-1938 (1998) the latter two have become the standard references on the early history of furniture making in this country.