Geo-Logic Associates (GLA) is an employee-owned, multidisciplinary environmental, civil and geotechnical engineering consulting firm with more than 450 employees located in 34 offices in the U.S. and abroad.

GLA and its affiliates, Andrews Engineering, Clear Creek Associates, Daniel B. Stephens & Associates, Geo-Logic Peru, Kunkel Engineering, John Shomaker & Associates, Inc., Loughlin Water Associates, LLC, RGH Consultants, Summit Water Resources, and The MINES Group provide solutions to challenges for landfills, mines, contaminated sites, municipal projects, natural resources, and water resources.