President's Message

Time flies when you’re having fun! At DiGioia Gray we have served our clients for over a decade in various areas of civil engineering expertise. Our staff now operates from offices in four states with further growth anticipated. But the true measure of our success has been our client relationships: we have established and maintained trust, respect and communication for the successful completion of projects as consultants, partners, team members, third-party reviewers and expert witnesses.

At DiGioia Gray we build on our technical expertise, best practices, and access to cutting edge technology every day – this is part of our culture and standard of practice. Our innovative, value-engineering solutions will continue to be supplemented by our research and academic ties.

We look forward to continuing to provide exceptional service to our clients.



DiGioia Gray was founded in 2004 by Anthony M. DiGioia Jr. and Richard E. Gray, who previously founded and served as chairman & president and senior vice president of another engineering consulting firm for 38 years. They are widely regarded as the “go-to” experts in their industry, with that reputation earned through decades of providing innovative project solutions on time and within budget.

Anthony M. DiGioia, JR., PhD. P.E.

Dr. DiGioia is a leader in the development of structural loading criteria for the design of electric transmission lines. He has conducted extensive foundation research and been a leader in the development and use of reliability-based design and analysis concepts applied to transmission line structures and foundations. Dr. DiGioia also has extensive experience in the siting and design of coal-combustion product (CCP) landfills and the beneficial use of CCPs in large tonnage applications such as roadway embankments and pavements, backfills, site development and airport fills.

Athony DiGioia

Richard E. Gray, P.G.

Mr. Gray is a specialist in soil and rock mechanics, engineering geology and foundation engineering. His consulting experience includes numerous geotechnical studies for large industrial developments such as steel mills and fossil fuel, hydroelectric and nuclear power plants. He is also internationally recognized for his work in subsidence engineering.

Richard Gray

DiGioia Gray’s founding principles emphasize quality work, client service, reliability, respect and integrity — values that are central to the company’s business philosophy. These values, along with the objective to meet schedules and commitments and an ability to provide innovative solutions to the most difficult challenges, have earned DiGioia Gray a reputation for excellence.

Professional Affiliations

  • ASCE (American Society of Civil Engineers)
  • IEEE (Institute of Electrical and Electronics Engineers)
  • SAME (Society of American Military Engineers
  • ASTM (American Society for Testing and Materials)
  • AEG (Association of Environmental and Engineering Geologists)
  • GSA (General Services Administration)
  • PGS (Pittsburgh Geological Society)
  • SME (Society Mining Engineer)
  • ASHE (American Society of Highway Engineers)
  • Geo Institute
  • Geo-Strata Editorial Board
  • National Committee on Continuing Education
  • Engineers Without Borders