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33 reviews

About Terracon

Employee-owned Terracon Consultants provides geotechnical, environmental, construction material evaluation, pavement engineering and construction management, and facilities engineering services. One of the nation's top design firms, the company serves the agriculture, energy, telecommunications, commercial development, and transportation sectors, as – more... well as government clients. Founded in Iowa in 1965, Terracon began as a joint venture between Shive, Hall and Hattery (civil consulting), Soil Testing Services (geotechnical testing), and Gerald Olson, P.E. (the company's founder and a project engineer). The company now has more than 130 offices in some 40 states.

Geographic Reach

Kansas-based Terracon has operations throughout the US, Canada, Cuba, and Mexico.


Acquisitive Terracon is expanding its menu of services and geographic footprint via acquisitons of regional companies across the US.

Mergers and Acquisitions

Terracon has expanded its geotechnical, environmental, engineering, and testing capabilities with a string of recent purchases. In 2012 it acquired California-based Earthtec, Inc., a provider of geotechnical, environmental, special inspection and other services to clients in Northern California. Also in 2012 it purchased Utah-based IHI Environmental, a provider of industrial hygiene, occupational safety, and environmental consulting services to public and private sector clients across the western US. Previously, Terracon bought Colorado firm Geotechnical Engineering Group, boosting its presence in the West; and Stafford Consulting Engineers, a building envelope system specialist with a presence in the Southeast. Also that year Terracon acquired Dressler Consulting Engineers, a building forensics engineering firm based in Kansas and Nodarse & Associates, a Florida-based environmental, geotechnical, and construction materials engineering firm.


Terracon is owned by its employees. The firm was ranked 51st on the Employee Ownership 100, the list of the top 100 largest majority employee-owned companies in the US in 2012. – less

Terracon Employer Reviews

Administrative Coordinator (Current Employee), Duluth, GASeptember 4, 2014
Laboratory II Technician (Current Employee), Tempe, AZJuly 28, 2014
Field Technician (Former Employee), Flora Vista, NMFebruary 24, 2014
Administrative Assistant III /CSR (Former Employee), Chicago, ILFebruary 9, 2014
Engineerign Technician (Former Employee), Winter Park, FLNovember 25, 2013

Working at Terracon

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