Geo-Logic Associates (GLA) is an employee-owned, multidisciplinary environmental, civil and geotechnical engineering consulting firm with more than 260 professionals in 30 offices in the U.S. and abroad.

GLA and its affiliates, Clear Creek Associates, Daniel B. Stephens & Associates, Geo-Logic Peru, Kunkel Engineering, and The Mines Group provide solutions to challenges for landfills, mines, contaminated sites, municipal projects, natural resources, and water resources.