Mason & Hanger, a Day & Zimmermann Company, is dedicated to providing architectural and engineering (A/E) services, specializing in worldwide design of secure, mission-driven facilities, proudly serving as a partner to the United States Government for nearly two centuries. 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, Department of Energy, and the Intelligence Community, among other government agencies critical to the U.S. National Security Mission.

As the oldest operating A/E firm in the United States, Mason & Hanger has a rich history covering nearly 200 years. Our teams have served the federal government on thousands of projects, in 48 states and 163 countries.

Mason & Hanger operates from a number of U.S. office locations including: Huntsville, AL; Lexington, KY; Chantilly, VA; Glen Allen, VA; and VA Beach, VA. 

Design

Mason & Hanger

Benjamin Lilly

Stephen Scott

T. Brett Prillaman

Jon Miller

Chris Lowe

Engineering and Design Team

Operations and Management Team

Leadership Team

Mason & Hanger

Org chart

Teams

Engineering and Design Team

Operations and Management Team

Leadership Team

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