Frank Riley, Sidney Park, and Ralph Hayden founded Riley, Park, Hayden & Associates in 1967 with a focus on surveying and aerial photography. Within a few years, the firm had grown to include a select group of engineers, surveyors, planners, and technicians trained at leading engineering and technical schools across the U.S.

Today Riley, Park, Hayden & Associates, Inc., is headquartered in Duluth, Georgia (a north Atlanta suburb), and has additional offices in central Georgia (Warner Robins); central Florida (Wildwood/Orlando); Houston, Texas; and Memphis, Tennessee.

Our client list includes some of the nation's largest corporations and federal agencies, as well as single-location family-owned businesses and small municipalities. Our engineers are registered in more than half the 50 states and also consult and practice internationally.