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Columbus, Ohio


Welcome to Columbus

Columbus is the capital of and the largest city in the state of Ohio.  We have been serving Columbus and the Central Ohio area for nearly 5 decades.  We’ve come to be engrained in the daily happenings of the community and its people. From our design and planning of residential golf course communities to municipal infrastructure to medical centers and universities, we are where we live, work, learn, and play.  We are committed to improving the quality of life of this vibrant community.

Our team of caring and experienced staff is passionate about improving the quality of life of this vibrant community and respecting our local environment.

Photo of Elie
Elie Sabbagh

Vice President, Regional Leader, US (Great Lakes & Midwest)
Phone: (614) 486-4383

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Meet Our Team

Don Armour, Senior Vice President, Geographic Leader, US (Central)

Creativity is first about listening to our clients’ needs, then looking outside the box to determine a new way to meet their needs.
Don Armour Senior Vice President, Geographic Leader, US (Central) Read More

Deb Gray, National Director, Risk Assessment & Toxicology

Reinvent yourself frequently enough to stay challenged and keep a fresh perspective.
Deb Gray National Director, Risk Assessment & Toxicology Read More

Brian Hagerty, Project Manager

It is important to understand the different needs between traveling by car, bus, bike, and foot when designing transportation systems.

Bryon Ringley , Senior Principal

Although this is a technical job, communication is key to our success. Developing and practicing your communication skills is important.

Joe Sullivan, Vice President - Discipline Leader, Transportation

My focus is to facilitate collaboration between offices in our region. As one of our value statements says, “We are better together.”
Joe Sullivan Vice President - Discipline Leader, Transportation Read More

Matt Tin, Vice President, Regional Leader, US Midwest

The water/wastewater industry can be a regulatory maze. It is very satisfying to work with a client to develop alternative and innovative solutions to ensure their projects are within regulatory compliance.

Rich Williams, Principal

I have the unique opportunity to explore the subsurface and design foundations for key structures in communities throughout the country.
  • Don Armour

    Senior Vice President, Geographic Leader, US (Central)

  • Deb Gray

    National Director, Risk Assessment & Toxicology

  • Brian Hagerty

    Project Manager

  • Bryon Ringley

    Senior Principal

  • Joe Sullivan

    Vice President - Discipline Leader, Transportation

  • Matt  Tin

    Vice President

  • Rich Williams

    Principal

We're better together

  • Become a client

    Partner with us today to change how tomorrow looks. You’re exactly what’s needed to help us make it happen in your community.

    Contact Us
  • Design your career

    Work with passionate people who are experts in their field. Our teams love what they do and are driven by how their work makes an impact on the communities they serve.

    Join the Team
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