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Duffield Associates

Geotechnical Firm|  Privately owned

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Our education collaborators are working on programs to implement the app in STEM classrooms and clubs for kids and teens nationally and around the world to learn about how engineering shapes our every day lives. Kids and teens in these programs will be invited to connect with engineers through the app so they can meet and interact with professionals in their fields of interest. Please contact us to learn more about the program and how you can participate.

About Us

Duffield Associates is an award-winning engineering and science consulting firm specializing in civil, environmental, water resources and geotechnical engineering; construction review and testing services. Duffield was recognized as a Top Place in Delaware in 2018.

Headquarters Location

Wilmington, DE, USA

Organization Size

51 - 200 employees

Year Founded


Services Provided

Soils: Geotechnical evaluations, foundation studies, sinkholes, landfills, retaining walls, laboratory testing, construction

Water: Flood, groundwater, stormwater management, nutrient management, marine & coastal structures, permitting, wastewater engineering, water supply

Environment: Sustainability, Phase 1 and 2 environmental site assessments (ESA), brownfield clean up, wetlands, habitat, regulatory permitting, landscape architecture, safety, regulatory compliance


  • Women Business Enterprise (WBE) - Delaware, USA
  • Women Business Enterprise (WBE) - Philadelphia, PA, USA


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