Our Team

GMB has a comprehensive team of over 90 professional staff members dedicated to producing exceptional solutions for our clients. From the newest members of our team to our seasoned owners with decades of experience, our people-centered culture is evident in everything we do. Our focus is on imparting wisdom and knowledge to the next generation of design professionals, while enriching our communities through innovative design.

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W. Brice Foxwell, P.E.

In Memory
Team Member from 1988 - 2022

James H. Willey, Jr., P.E. crop (1)

James H. Willey, Jr., P.E.

President, Managing Member
Team Member since 1996

Peter A. Bozick, Jr., P.E.

Peter A. Bozick, Jr., P.E.

Executive Vice President, East Region Director of Engineering
Team Member since 1974

Charles M. O_Donnell, III, P.E. crop

Charles M. O’Donnell III, P.E.

Senior Vice President, Director of Business Development
Team Member since 1989

Stephen L. Marsh, P.E.

Stephen L. Marsh, P.E., LEED AP, CPSWQ

Senior Vice President, East Region Director of Operations
Team Member since 1994

Jason M. Lytle, P.E. crop

Jason M. Lytle, P.E.

Senior Vice President, West Region Director of Operations
Team Member since 1998

A. Reggie Mariner, Jr., P.E. crop

A. Reggie Mariner, Jr., P.E.

Senior Vice President, Structural Engineering Group Leader
Team Member since 1992

James C. Hoageson, P.E. crop

James C. Hoageson, P.E.

Senior Vice President, East Region Civil / Municipal Group Leader
Team Member since 1994

David A. Vanderbeek, P.E. crop

David A. Vanderbeek, P.E.

Senior Vice President, West Region Civil / Municipal Group Leader
Team Member since 2004

Roland E. Holland, P.E. crop

Roland E. Holland, P.E.

Senior Vice President, Project Director, Structural Group
Team Member since 2001

Morgan H. Helfrich, AIA sit crop

Morgan H. Helfrich, AIA, LEED AP

Senior Vice President / Architecture Group Leader
Team Member since 2006

Chris B. Derbyshire, P.E. crop

Christopher B. Derbyshire, P.E.

Senior Vice President, East Region Water / Wastewater Group Leader
Team Member since 2002

Katherine J. McAllister, P.E. crop

Katherine J. McAllister, P.E.

Senior Vice President, Project Director - East Region Water / Wastewater Group
Team Member since 2005

Andrew J. Lyons, P.E. crop

Andrew J. Lyons, Jr., P.E.

Vice President, Sr. Project Manager - East Region Civil / Municipal Group
Team Member since 2003

W. Mark Gardocky, P.E. crop

W. Mark Gardocky, P.E.

Vice President, Project Manager - West Region Water / Wastewater Group
Team Member since 1994

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John E. Burnsworth, P.E.

Senior Vice President, West Region Water / Wastewater Group Leader
Team Member since 1991

Christopher J. Pfeifer, P.E. cropped

Christopher J. Pfeifer, P.E.

Vice President, Site / Sustainable Group Leader
Team Member since 2013

Vincent A. Luciani, P.E. crop

Vincent A. Luciani, P.E.

Associate, Project Manager - East Region Civil / Municipal Group
Team Member since 2006

Autumn J. Willis crop

Autumn J. Burns

Associate / Controller
Team Member since 2006

Benjamin K. Hearn, P.E.

Benjamin K. Hearn, P.E.

Associate / Project Manager - East Region Civil / Municipal Group
Team Member since 2014

Brent R. Jett, P.E. crop2

Brent R. Jett, P.E., CFM, CC-P

Associate, Coastal Resiliency Group Leader
Team Member since 2019

Dean B. Culver crop

Dean B. Culver

Construction Services Group Leader
Team Member since 2014

Douglas R. Kopeck, RLA

Douglas R. Kopeck, RLA

Landscape Architecture Group Leader
Team Member since 2020

Judy A. Schwartz, P.E., LEED AP

Judy A. Schwartz, P.E., LEED AP

Senior Vice President Emeritus
Team Member since 1980