Muldoon Engineering's Don Alderson's relationship with SEMA dates to 1960, when his company Milodon Engineering was one of the 13 originating member companies of the Speed Equipment Manufacturers Association, the first SEMA.

Known for his technical expertise, Alderson and his company focused on internal engine components. His Milodon girdle—used to strengthen the bottom-end of competition engines—was one of his most innovative products.

Today Alderson owns and operates Muldoon Engineering based in Rosamond, Calif. Throughout the years Alderson has been a strong supporter of SEMA and its programs, serving on the Board of Directors and as a member of many committees.