HSU was founded in 1994 by entrepreneur Walter Hsu. Initially, the company focused on residential historic preservation and the development of small real estate projects in Montgomery County, Maryland.

Today, HSU has become a leading full-service contractor entrusted to work on our nation’s most treasured landmarks, including memorials, federal facilities, and diplomatic outposts worldwide. Our presence extends from the heart of the nation’s capital to all five continents, providing hundreds of employees, subcontractors, and suppliers with professional growth and opportunities.

From iconic government buildings to groundbreaking private sector developments, we have upheld our commitment to excellence, integrity, and innovation for over three decades. HSU has successfully delivered numerous high-profile projects, earning a reputation for reliability and expertise. This dedication is reflected in the trust we’ve built with our clients, including more than 25 years of partnership with The Smithsonian and over two decades with the Pentagon.

From estimating to project close-out, HSU works in a positive and collaborative relationship with each client, helping create the best possible solution throughout the stages of every project.