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History; The HSC Foundation Headquarters

SIGAL has provided construction services in the Washington DC area since 1977. As one of the area's leading commercial construction firms, SIGAL has extensive experience in providing clients with preconstruction, general contracting, construction management, design-build, sustainable construction services, and more.

With roots firmly established in the interiors market, SIGAL has been responsible for some of the most difficult and challenging tenant projects throughout the Washington area. Over the course of 35 years, SIGAL has built out millions of square feet of diverse tenant space for a variety of clients. These include, but are not limited to several prestigious law firms, Fortune 500 and Global 1000 companies, corporations, institutions of higher learning, and government agencies.

In addition, SIGAL has performed renovations of all types. Whether the project was a major renovation with replacement of building systems, historical restoration, occupied renovation or a unique combination thereof, SIGAL has been known as an industry leader in modernizing complex structures. Many of these projects were accomplished in occupied buildings with SIGAL's commitment to minimizing disruption to ongoing building activities.

Following continued success with interiors and renovations, SIGAL entered the base building market in the early 1980's. Since then, base building has become a cornerstone of SIGAL's vast portfolio. To this day, SIGAL continues to provide preconstruction and construction services for some of DC's landmark buildings.

As an industry leader, SIGAL was a founding member of the US Green Building Council (USGBC), and was part of the original committee that helped spearhead USGBC's LEED® green building rating system. SIGAL's offices in Arlington are LEED-CI Silver, which was the first LEED-CI project of any rating level in Arlington County. SIGAL continues to build upon its pioneering commitment to a green future by helping clients incorporate LEED® certifications into their buildings and spaces.

Lastly, SIGAL prides itself in providing award-winning service, receiving many local and national awards from the key industry associations. These include the Associated Builders and Contractors (ABC), Washington Building Congress (WBC), and Associated General Contractors of America (AGC). For nearly 20 years, the Washington Business Journal has ranked SIGAL in the Top Ten General Contractors of the Washington Metropolitan Area.