Grunley Construction Co. Inc. is an award-winning construction firm with expertise in high-profile, complex projects for both public and private sector customers. Headquartered in the Washington metropolitan area, Grunley specializes in building new facilities as well as renovations, restorations and modernizations of large-scale commercial, institutional and government buildings. Our annual revenues are more than $525 million and our bonding capacity is $1 billion aggregate. The Washington Business Journal ranks Grunley among the Largest General Contractors (#10 in 2022) and the Largest Interior Construction Firms (#3 in 2022) in the Washington metropolitan region. In addition, the Engineering News-Record nationally ranks us among the Top 400 Contractors (#181 in 2022) and the Top 100 Green Contractors (#51 in 2021).