Grunley Construction Company, 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, our firm specializes in building new facilities as well as renovations, restorations and modernizations of large-scale commercial, institutional and government buildings.
We Build What Matters
In a world where every structure tells a story, Grunley is introducing new characters that transform urban neighborhoods, support mission-critical objectives and revitalize historic structures throughout our nation’s capital. From campuses that inspire the leaders of tomorrow to iconic monuments that stand the test of time, we build what matters.
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Our Sectors

CommercialElevating workspaces through cutting-edge construction solutions, where innovative design meets unparalleled craftsmanship to create spaces that inspire success and foster growth.

Institutional Building cultural, educational and corporate facilities that nurture free-thinking and a sense of community while blending functionality with aesthetics for a lasting impact.

Government Supporting mission critical objectives through state-of-the-art facilities that meet the unique demands of public service, embodying efficiency, and sustainability.
Our Team
Grunley has a staff of more than 340 construction industry professionals, including architects, engineers, LEED® Accredited Professionals, historic buildings specialists, as well as construction professionals experienced in preconstruction services (e.g., estimating and value analyses, design management, constructability reviews, purchasing, scheduling), project management, construction supervision, MEP coordination, quality control, and field construction services (e.g., foremen, carpenters, laborers, and bricklayers). Our home office support team includes accounting; project administration; information technology and building information modeling (BIM); and corporate leadership in safety, field operations, training, scheduling, quality control, and LEED® compliance.
By the Numbers
0Year founded
$0M Average revenues past 3 years
0+ Employees in 2025
0ENR “Top 400 Contractors” ranking (2025)
0 ENR “Top 100 Green Contractors” ranking (2025)
0 ENR “East Top Contractors” ranking (2025)
0 ENR “East Top Government/Public Service Contractors” ranking (2025)
0 WBJ “Largest General Contractor in the Metro Area” ranking (2025)
0WBJ “Largest Interior Construction Firm in the Metro Area” ranking (2025)
0WBJ “Top Private Companies” ranking
(2025)
$0B Historic renovation last 10 years
0+Local, regional and national awards