Geo-Logic Associates (GLA) is an employee-owned, multidisciplinary environmental, civil, and geotechnical engineering consulting firm.

GLA and its affiliates, Clear Creek AssociatesDaniel B. Stephens & Associates, Kunkel Engineering, Geo-Logic Peru, Summit Water Resources, and The Mines Group provide solutions to challenges at landfills, mines, and municipal and industrial sites to improve or maintain environmental quality, preserve natural resources, and develop or enhance water resources for our clients and the communities that we serve.

GLA was established in 1991 and has grown to include more than 300 employees located in 28 offices in the U.S. and abroad. Our professional staff includes registered civil and geotechnical engineers, certified engineering geologists, professional geologists, certified hydrogeologists, and certified stormwater professionals in addition to field and laboratory technicians. Our long-established clients represent the public and private sectors as well as federal and state agencies for whom we provide a wide array of services.

Moreover, GLA’s office locations ensure that our clients receive the attention they need from professional staff located near their projects. GLA’s service platform is extensive and we continue to strive to meet our client’s expectations in delivering projects both on schedule and under budget. These core values serve as the foundation of our firm and are as important today as they were when GLA was founded in 1991.


GLA’s core mission is to provide our clients with innovative, cost‐effective, and environmentally sound solutions to their engineering and construction challenges.


GLA, Kunkel, Clear Creek, DBS&A, MINES Group, Summit