By bringing these two organisations into Terracon, the company said it is reinforcing its Mid-Atlantic focus, now with five offices in the metropolitan area.

GeoConcepts provides geotechnical engineering, hydrogeologic, environmental services, and materials testing and inspection. Located in Ashburn, Virginia, GeoConcepts offers these services during project planning design and construction phase services for clients throughout the region. GeoConcepts' experience includes public and private projects ranging from roadway, mass transit and utility infrastructure, to facilities serving the government, educational, commercial, institutional, multi-family and health care markets.

GeoCapitol is a District of Columbia Certified Business Enterprise (CBE) company headquartered in Washington, D.C., providing geotechnical engineering, hydrogeologic, environmental consulting, and materials testing and inspection services. Within the CBE programme, GeoCapitol is considered a Local Business Enterprise (LBE). GeoCapitol's team members have more than 30 years of experience working in D.C. and have developed long-standing working relationships with local regulatory officials.

"We are striving to always effectively connect market needs with our capabilities," said David Gaboury, president and CEO of Terracon. "By aligning Terracon's national network with the great wealth of talent located in and around the region, we significantly enhance the value we can offer clients locally and across the country."

The organisations will continue to serve clients locally as GeoConcepts, A Terracon Company and GeoCapitol, A Terracon Company.

"This merger will allow us to offer our clients a local network of five offices with a diverse range of quality-oriented services. In addition, our offices will be supported by Terracon's extended expertise and resources across the country," said Ted Lewis, principal of GeoConcepts. "With offices in Virginia, Maryland and the District of Columbia, our combined staff of 135 looks forward to working together on successful projects throughout the Mid-Atlantic."

These acquisitions are supported by Terracon's Germantown, Maryland, office established in 2017, and locations in Dulles and Woodbridge, Virginia, acquired from the former Geotechnical Consulting & Testing in 2016.