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

The Engineering and Design Team at Mason & Hanger is responsible for delivering comprehensive architectural and engineering solutions for secure, mission-driven facilities. This multidisciplinary team, composed of skilled engineers and designers, collaborates on projects that meet the stringent requirements of government clients, ensuring safety, functionality, and compliance with national security standards. Their expertise spans various disciplines, including civil, mechanical, electrical, and structural engineering, playing a pivotal role in advancing the company's legacy of nearly two centuries of service to the U.S. Government.

Engineering and Design Team

Operations and Management Team

Leadership Team

Engineering and Design Team

About

Team members

Other teams at Mason & Hanger

Operations and Management Team

Leadership Team