Mason & Hanger, a Day & Zimmermann company, is dedicated to providing architectural and engineering (A/E) services specializing in the worldwide design of secure, mission-driven facilities.
For nearly two centuries, Mason & Hanger has been a trusted partner of the U.S. Department of Defense (Army, Navy, Air Force, Marines, National Guard – active and reserves), Department of Homeland Security, Department of State, Department of Energy, and other government agencies critical to the U.S. National Security Mission. Mason & Hanger has provided best-in-class architectural and engineering (A/E) services to the federal government on thousands of projects in 165 countries. Mason & Hanger has ranked nationally among the Top 15 A/E firms in Government Building Design.
"We provide smart, innovative solutions for difficult and complex design challenges to support the U.S. Government with their security missions globally."
-Benjamin A. Lilly, President, Mason & Hanger
Customized, streamlined solution for every mission – focusing on communication and quality control.
Sustainable offerings including comprehensive energy and water conservation measures to reduce greenhouse gas emissions.