“SMA’s environmental consulting capabilities complement and align with our environmental service offerings in the Midwest and nationally,” says Gayle Packer, Terracon president. “Their expertise and depth of experience with clients in Indiana and Illinois enhances our presence in the region.”

The company and its 31 employees, including geologists, engineers, scientists, field professionals, data analysts and administrative staff, will continue to serve clients locally as St. John-Mittelhauser & Associates.

“We are proud of the strong client relationships we have built over the years, and that our expertise and quality of services have led us to this opportunity,” says Ron St. John, PHG, CPG, co-founder and principal hydrogeologist. “Drawing on Terracon’s national network, we are able to offer greater resources and a broader range of services to our employees and clients.”

The new acquisition is supported by Terracon’s existing offices in Glendale Heights and Rockford, Ill., Indianapolis and St. Louis. SMA is Terracon’s sixth acquisition since the beginning of 2017.

Terracon is an employee-owned consulting engineering firm with more than 4,000 employees providing environmental, facilities, geotechnical, and materials services from more than 140 offices with services available in all 50 states. Terracon currently ranks 24th on ENR’s list of the Top 500 Design Firms. For additional information about Terracon, visit www.terracon.com.