Allegheny Design Services (ADS) was named by the Giants 300 Report as a top engineering firm in July’s issue of Building Design and Construction Magazine.


ADS qualified in the Multi-Discipline Engineering category placing it at number 54 in the nation of this category.

“Many of the other firms on the list operate multiple locations across the USA,” said David Simpson, ADS president.  “With only one office in North Central West Virginia, we see this as quite an accomplishment and a testimony to the thriving economy in this region.”

Building Design and Construction Magazine

BD+C is a trade publication that is geared toward designing, building and owning firms in the non-residential construction industry.  It was established in 1950 and published monthly.  The content is focused around providing their audiences with material on how significant projects are built, how problems that arise for building teams are solved and how building teams are able to deliver projects on time and on budget.

Allegheny Design Services

ADS was established in 2002 and provides structural and MEP consulting engineering. We specialize in building systems design and also deliver engineering support to industry, manufacturing, construction practices and forensic investigations.

Based out of North Central West Virginia, we have also performed work for many clients in Maryland, Ohio, Pennsylvania, South Carolina, Virginia, Florida, Tennessee and Washington D.C. More than 80% of our clients are repeat customers.

To learn more about our team, click here!


Thanks for reading!

Written by David Simpson, P.E., SECB, MBA, President, Principal Engineer

dave-simpson2David Simpson’s experience includes over 30 years in structural design and project management for industrial, commercial, institutional and nuclear/chemical facilities utilizing steel, concrete, masonry and wood. His accomplishments include design and construction administration of health care facilities, hotels, schools, shopping centers, aircraft hangars, numerous retail facilities and several forensic engineering assignments. He has professional registrations in D.C., Maryland, Ohio, Pennsylvania, South Carolina, Virginia and West Virginia. Simpson graduated from the West Virginia Institute of Technology with a bachelor’s degree in civil engineering and an MBA from West Virginia University.