Olsen & Associates, founded in 1986, is a full-service engineering firm. It employs licensed professionals in the fields of landscape architecture and land surveying, as well as has a staff of professional planners, grant writers, cartographers and design managers. The firm provides planning, community development and engineering services to more than 40 local municipalities and a variety of public and private clients in Beaver, Butler, Armstrong, Allegheny, Indiana, Mercer and Washington counties in Pennsylvania. Olsen & Associates engineering services include commercial and residential land development, industrial park design, sanitary sewer analysis and construction monitoring. The firm offers architectural services through Olsen/Hill Design Associates. Its municipal services include comprehensive plan development and ordinance codification. Olsen & Associates additionally conducts property surveys and feasibility studies and is located in Butler, Pa.