Welcome to DiGioia Gray!

DiGioia Gray is a dynamic firm led by internationally respected engineers and scientists with experience providing consulting services for the energy, transportation, infrastructure, and building development industries.

Research Papers & Presentations

Markets We Serve

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Power Delivery

DiGioia Gray is a trusted partner, delivering engineering solutions for Power Delivery projects. We offer integrated design and technical support services for Transmission Lines and Substations up to 765kV, offering a full-bandwidth of civil, structural, geotechnical, foundation, electrical engineering, protection and control and physical station expertise.

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Oil & Gas

DiGioia Gray integrates our civil, geotechnical and geosciences engineering expertise to provide critical support of upstream production and midstream infrastructure assets for our Oil & Gas clients. Our unparalleled experience is primarily concentrated in the Appalachian Basin region where challenging site development, variable geographical terrain, environmental and uncertain soil and weather conditions add complexity to design projects.

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Services We Provide


FAD Tools International