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Terracon

Terracon is an employee-owned engineering consulting firm providing services across the project lifecycle.

Last updated September 11, 2026

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Overview

Terracon is an engineering consulting firm. According to its official website, it is 100% employee-owned and has more than 200 locations across the United States, with over 8,000 employees. The company traces its origins to 1965, when Gerald Olson opened Soil Testing Services of Iowa, Inc., and became Terracon Consultants, Inc. in 1980. It offers services including environmental consulting, geotechnical engineering, construction materials testing, and facility engineering.

History

Terracon traces its origins to 1965, when Gerald Olson opened Soil Testing Services of Iowa, Inc. By 1974, the company had 40 employees and $965K in revenue. In 1980, it became Terracon Consultants, Inc. and became 100% employee-owned. In 1984, it had 80 employees and $5.4m in revenue. In 1985, the company reorganized and formed a new parent, The Terracon Companies, Inc., with three wholly-owned operating entities: Terracon Consultants SC, Inc., Terracon Consultants SE, Inc., and Terracon Consultants NE, Inc. Also in 1985, Terracon EC, Inc. became Terracon Environmental, Inc., and Terracon Consultants Western, Inc. was established. In 1986, Barnett, Stuart & Associates (KS) was acquired. In 1992, Empire Laboratories (CO) and Desert Earth were acquired. In 1993, the company had its first $1 million+ project for the Minnesota Pollution Control Agency, and Bolin was acquired. In 1994, it had 250 employees and $54.1m in revenue. In 1996, Larry Davidson became the second CEO, and the Employee Stock Ownership Program (ESOP) was formally funded. In 1997, HSE Consulting and Sampling (NE) and IMS (AZ) were acquired, and the National Account Program was established. In 1998, HBC Engineering (TX) was acquired, and all operating companies changed their names to Terracon; the Facilities service line was added.

Products and positioning

Explorers of the natural and built environment

Recent events

  • ChargePoint Technology acquires Terracon Corporation[6]

    Reported:

    ChargePoint Technology announced that it had acquired Terracon Corporation, a supplier of single-use products and accessories for mixing, transferring, and storing fluids in biopharma and life science markets.

  • Unconfirmed

    Terracon acquires Environmental Planning Group[7]

    Reported:

    Terracon announced its acquisition of Environmental Planning Group (EPG), a Phoenix-headquartered consulting company. EPG's approximately 50 employees would immediately become part of Terracon, while the organization would continue serving clients as Environmental Planning Group, A Terracon Company.

  • Terracon acquires Skelly and Loy[8]

    Terracon acquired Skelly and Loy, an environmental consulting and engineering services company headquartered in Harrisburg, Pennsylvania. Skelly and Loy continued serving local clients under its name as a Terracon company.

Sources8 sources

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