Maryland’s construction sector supports a diverse economy driven by healthcare, biotechnology, government, infrastructure, commercial development, and residential growth. From Baltimore and Annapolis to Bethesda, Frederick, Rockville, and the Eastern Shore, general contractors in Maryland deliver projects that shape communities and strengthen economic activity. The state’s contractors manage complex developments, including hospitals, universities, government facilities, transportation infrastructure, office buildings, and residential communities. Maryland’s proximity to Washington, D.C., also creates strong demand for experienced builders capable of handling secure, high-performance, and technically advanced projects. The following companies represent some of the leading Maryland general contractors, recognized for construction expertise, safety standards, project management capabilities, and contributions to the state’s built environment.
Top 20 General Contractors in Maryland
1. Whiting-Turner Contracting Company
Whiting-Turner is one of the largest construction companies in Maryland, headquartered in Baltimore. The company provides general contracting, construction management, and design-build services nationwide. It serves Baltimore, Bethesda, Columbia, and other Maryland markets. Major projects include healthcare facilities, universities, corporate campuses, and government buildings. Its expertise covers advanced technology, healthcare, commercial, and institutional construction.
2. Gilbane Building Company
Gilbane has a strong presence among commercial contractors in Maryland, delivering construction management and general contracting services for complex projects. The company serves Baltimore, Washington metropolitan communities, and surrounding regions. Its Maryland projects include healthcare facilities, educational buildings, government facilities, and corporate developments. Gilbane specializes in large-scale construction, sustainability, and advanced project delivery methods.
3. Clark Construction Group
Clark Construction is a nationally recognized builder with significant operations in Maryland. The company provides construction management, design-build, and general contracting services for commercial, infrastructure, and institutional projects. It serves Baltimore, Bethesda, Silver Spring, and surrounding areas. Maryland projects include transportation facilities, healthcare centers, government buildings, and large mixed-use developments requiring advanced construction expertise.
4. Hensel Phelps
Hensel Phelps delivers complex construction projects throughout Maryland, particularly in government, aviation, healthcare, and technology sectors. The company serves Baltimore, Annapolis, Bethesda, and the Washington metropolitan region. Its projects include federal facilities, research buildings, healthcare campuses, and specialized infrastructure. The contractor is recognized for innovative construction methods, quality control systems, and technically demanding project execution.
5. The Whiting-Turner Contracting Company (Baltimore Division)
The Baltimore division of Whiting-Turner has played a major role in Maryland’s construction growth. The company serves Baltimore City, Baltimore County, Howard County, and surrounding markets. Its projects include hospitals, university facilities, commercial offices, and mixed-use developments. The firm’s local knowledge and national resources make it one of the most established building contractors in Maryland.
6. J. Vinton Schafer & Sons, Inc.
J. Vinton Schafer & Sons is a Maryland-based contractor specializing in healthcare, institutional, commercial, and renovation projects. The company serves Baltimore, Annapolis, and communities throughout central Maryland. Its portfolio includes medical facilities, schools, government buildings, and historic renovations. The firm focuses on quality craftsmanship, safety management, and long-term client relationships.
7. Plano-Coudon Construction
Plano-Coudon Construction is a Baltimore-based contractor providing construction management, general contracting, and design-build services. The company serves Baltimore, Columbia, Annapolis, and surrounding Maryland communities. Its projects include healthcare facilities, universities, commercial buildings, laboratories, and public facilities. The firm is known for managing complex renovations and occupied facility upgrades with minimal disruption.
8. Barton Malow Company
Barton Malow provides construction management, general contracting, and specialty construction services across Maryland. The company serves Baltimore, Washington metropolitan areas, and industrial markets throughout the state. Its projects include healthcare facilities, energy infrastructure, manufacturing plants, and institutional buildings. The contractor specializes in technically complex projects requiring advanced engineering coordination and construction expertise.
9. Turner Construction Company
Turner Construction is one of the largest construction firms in the United States, with extensive operations in Maryland. The company serves Baltimore, Bethesda, Rockville, and other major markets. Its Maryland projects include hospitals, research facilities, commercial buildings, sports venues, and government developments. Turner specializes in large-scale construction management, sustainability, and innovative building technologies.
10. Kinsley Construction
Kinsley Construction provides commercial construction, general contracting, and design-build services throughout Maryland. The company serves Baltimore, Frederick, Columbia, and surrounding communities. Its portfolio includes healthcare facilities, education buildings, industrial projects, offices, and public infrastructure. Kinsley is recognized for its integrated project delivery approach and ability to manage complex construction programs.
11. The Christman Company
The Christman Company delivers construction management and general contracting services for institutional, commercial, and government clients. The company serves Maryland markets including Baltimore and the Washington metropolitan area. Its projects include educational facilities, healthcare buildings, research centers, and public-sector developments. Christman focuses on collaborative planning, sustainable construction practices, and high-quality project execution.
12. DPR Construction
DPR Construction operates throughout Maryland, specializing in advanced commercial construction, healthcare, life sciences, and technology projects. The company serves Baltimore, Rockville, Bethesda, and surrounding areas. Its projects include research laboratories, medical facilities, corporate offices, and high-performance buildings. DPR is recognized for technical expertise, lean construction methods, and complex project delivery.
13. Harkins Builders
Harkins Builders is a Maryland-based contractor specializing in commercial, multifamily, healthcare, and senior living construction. The company serves Columbia, Baltimore, Annapolis, and communities across the state. Its portfolio includes apartment communities, healthcare facilities, education projects, and mixed-use developments. Harkins combines local market experience with modern construction practices to deliver long-term value.
14. Southway Builders
Southway Builders provides commercial construction and renovation services throughout Maryland. The company serves Baltimore, Annapolis, Columbia, and surrounding areas. Its expertise includes healthcare, education, nonprofit, commercial, and institutional projects. Southway has completed medical facilities, schools, office renovations, and community developments. The firm focuses on relationship-driven construction and detailed project management.
15. War Horse Cities
War Horse Cities is a Maryland-based construction and development company specializing in commercial, mixed-use, and community redevelopment projects. The company serves Baltimore and surrounding urban markets. Its portfolio includes adaptive reuse projects, commercial properties, hospitality developments, and neighborhood revitalization initiatives. The firm combines construction expertise with real estate development strategies to support Maryland’s growing communities.
16. Bozzuto Construction Company
Bozzuto Construction is a Maryland-based contractor specializing in residential, multifamily, and mixed-use developments. The company serves Bethesda, Baltimore, Columbia, and metropolitan Washington communities. Its projects include luxury apartment communities, urban residential developments, and mixed-use properties. Bozzuto is recognized for high-quality residential construction, innovative designs, and delivering complex developments in competitive markets.
17. GWWO, Inc.
GWWO provides architecture and construction-related services for institutional, cultural, and public projects throughout Maryland. The company serves Baltimore and statewide markets through collaborative design and construction solutions. Its projects include museums, educational facilities, visitor centers, and civic buildings. GWWO is known for preservation-focused design, sustainable construction approaches, and specialized institutional developments.
18. JMT Construction Services
JMT Construction Services supports Maryland’s infrastructure and development markets through construction management, inspection, and project support services. The company serves Baltimore, Frederick, Annapolis, and statewide transportation markets. Its work includes transportation infrastructure, public facilities, and engineering-related construction projects. JMT contributes technical expertise to complex infrastructure programs across Maryland.
19. HITT Contracting
HITT Contracting provides commercial construction services for office, healthcare, government, technology, and specialty projects throughout Maryland. The company serves Bethesda, Rockville, Baltimore, and the Washington metropolitan area. Its projects include corporate workplaces, medical facilities, laboratories, and institutional developments. HITT focuses on innovative construction methods, workplace solutions, and efficient project delivery.
20. Morgan-Keller Construction
Morgan-Keller Construction is a Maryland-based contractor specializing in commercial, residential, industrial, and institutional construction. The company serves Frederick, Baltimore, Hagerstown, and communities throughout western and central Maryland. Its projects include healthcare facilities, schools, corporate offices, retail developments, and residential communities. Morgan-Keller emphasizes craftsmanship, safety, and dependable construction management.
Building Maryland’s Future Through Construction Excellence
The demand for experienced general contractors in Maryland continues to increase as the state invests in healthcare, biotechnology, infrastructure, housing, education, and commercial development. Maryland’s strategic location near Washington, D.C., combined with its strong business environment, creates opportunities for contractors capable of delivering complex and technically advanced projects.
The companies featured among the top construction companies in Maryland demonstrate the diversity of expertise within the state’s construction sector. From large-scale commercial developments and government facilities to residential communities and infrastructure improvements, these firms provide essential services that support economic growth.
As Maryland continues expanding its urban centers, improving transportation networks, and developing modern facilities, skilled licensed contractors in Maryland will remain critical partners in shaping the state’s future. Their experience, technical capabilities, and commitment to quality construction help create durable buildings and infrastructure that serve communities for generations.
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