Mason & Hanger is a trusted partner of the U.S. Department of Defense (Army, Navy, Air Force, Marines, National Guard), Department of Defense Reserves, Department of Homeland Security, Department of State, and Department of Energy, among other government agencies critical to the U.S. National Security Mission.
Mason & Hanger has a rich history covering nearly 200 years, as the oldest operating A/E firm in the United States.
The teams have combined experience that has served the federal government in thousands of projects, in 48 states and 163 countries. With offices in Lexington, Kentucky and Richmond, Virginia Beach and Woodbridge, Virginia, Mason & Hanger has ranked nationally among the Top 15 A/E firms in Government Building Design.
The firm consistently ranks in ENR’s list of top international design firms. In 2016, as part of Day & Zimmermann, the overall company ranked #172 among the Annual Top 500 Design Firms by Engineering News-Record.
Mason & Hanger is a longstanding member of the American Council of Engineering Companies with active participation among its principals.