Founded in 1975, Professional Consultants is an engineering and surveying firm. It maintains a more than 7500-square-foot office location and employs a staff of over 30. Its staff members include engineers, land surveyors and land use planners, as well as computer-aided design operators and support members. Professional Consultants serves a variety of government and private clients throughout western Montana. The firm also provides planning and mapping services to clients. Its clients include Arrow Hill II, O'Keefe Ranch Estates, Miller Creek, DirecTV and Big Sky Brewery. Its projects include Missoula Developmental Park, Missoula Aquatics Projects and West Shore Park. Professional Consultants maintains a location in Missoula, Mont.