Duffield Associates Employee Directory
Civil EngineeringDelaware, United States51-200 Employees
Duffield Associates, established in 1976, is a civil engineering firm headquartered in a historic barn and farmhouse in Pike Creek Valley near Wilmington, Delaware. It maintains regional offices in Dover, DE; Philadelphia and Carlisle, PA; Thorofare, NJ; and Bel Air, MD to serve clients across the mid-Atlantic, offering a broad suite of services across civil, environmental, water and wastewater, and related disciplines. The firm serves both public and private sector clients, addressing infrastructure development, environmental stewardship, and community-scale improvements through integrated multidisciplinary approaches. Its culture emphasizes cross-disciplinary collaboration and community engagement, with a 2018 Top Workplace recognition in Delaware and growth-oriented hiring, such as the 2017 appointment of a senior consultant.
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