Dewberry is a family-owned planning, design and construction firm headquartered in Fairfax, Va. Sidney O. Dewberry founded it, and the company counts a 70-year history. It’s big: more than 2,500 employees in 50-plus offices, $763 million in 2025 revenue, and No. 35 on ENR’s Top 500 Design Firms. Its companies cover engineering, architecture and design-build, plus geospatial and survey work, environmental and disaster resilience. Transportation’s a core market. On the Van Wyck Expressway rebuild in Queens, Dewberry and Greenman-Pedersen designed Contract 1 for the Posillico/El Sol joint venture, part of the $1.4 billion design-build program whose managed-use lanes to JFK opened Oct. 23.
Seven service lines, twelve markets. The distinction between those two lists is the most useful thing on Dewberry’s site, because it explains how a 2,500-person firm organises work that would otherwise overlap.
The services are engineering, architecture, geospatial mapping and survey, environmental, technology, construction, and planning, consulting and advisory. The markets are community facilities, federal, justice, telecommunications, education, health and wellness, real estate and commercial development, transportation, energy, industrial, water, and Risk Response Recovery and Resilience.
Resilience sitting on the market list rather than the service list is deliberate and worth understanding. It means a flood mitigation programme is staffed from engineering, geospatial, planning and environmental rather than handed to a separate resilience group. For a county recovering from a storm, that is the difference between one firm and four.
Geospatial as its own service line is likewise not a throwaway. Survey, mapping and remote sensing capability in-house is what lets a transportation or water programme start from current ground conditions rather than waiting on a subconsultant.
Justice and telecommunications appearing as named markets alongside federal and transportation says something about how the firm wins work. Those are long-cycle public and regulated-client markets where approved-vendor status and past performance matter more than fee.
Scale figures the firm publishes: more than 2,500 employees, 50-plus locations nationwide, 763 million dollars in 2025 revenue, number 35 on ENR’s Top 500 Design Firms list, and a legacy of 70 years. It describes itself as family owned, client centric and community driven, and names its core values as creating value for clients, improving communities, empowering employees and expanding reach.
Family ownership at this size is uncommon and has a practical consequence for clients: there is no quarterly earnings pressure shaping which pursuits get resourced.
Two gaps to note. The firm lists no office cities on its public pages despite the 50-plus count, so a client wanting a local team should ask which office would be assigned. And it names no certification or professional affiliation at the firm level, which is normal for a practice this size but still worth confirming against any procurement requirement.
Sources: https://www.dewberry.com/, https://www.dewberry.com/about, https://www.dewberry.com/services, https://www.dewberry.com/markets, https://www.dewberry.com/contact
