Geo-Logic Associates (GLA) is an employee-owned, multidisciplinary environmental, civil and geotechnical engineering consulting firm with more than 250 professionals in 27 offices in the U.S. and abroad.

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