David Mason + Associates (DMA) is a professional engineering company, incorporated in March of 1989. Over the years, we have established a reputation for meeting the constraints of budgets and deadlines while utilizing the latest technology to take major projects and programs from conception to completion. DMA is a Minority-Owned Business Enterprise (MBE) providing a full range of planning, design, management, and inspection services.

The DMA community unites hundreds of employees working in St. Louis, Chicago, and Philadelphia. We are innovative with our project types —  New Facilities and Infrastructure, Renovations and Expansions, Inspections, Utilities, Tunnels and Subsurface Structures, Stormwater Management, Site Development, and Transportation —  and our project managers are adept at communicating to keep projects on track. 

We are dedicated to our clients and our people in the industries we serve, which include Healthcare, Commercial and Institutional, Aviation, Education, Parks and Recreation, Public and Civic, Transportation, Utilities, and Water and Wastewater.

See more of our work at davidmason.com/projects

Construction

Engineering

Transportation

Utilities

David Mason + Associates (DMA)

David Mason + Associates (DMA)'s headquarters in St. Louis, MO, United States

David Mason

Spencer Mason

Zachary Little

James C. Gleaton

Rosie Kaftantzis

Diane Patterson

Gerard A Wills

Carl Navales

Ronnie Lowe

Michael Maxwell

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People (22)

David Mason

Chris Spann

Todd Scheibe

Arena Cheney

Christopher Einig

John Gagliardo

Robert Brown III

Ronnie Lowe

Taylor Mason

Jen Lacava

Matthew Byers

Michael Mueller

Carl Navales

Robin Wandling

Gerard A Wills

Diane Patterson

Chris Trowbridge

Rosie Kaftantzis

Michelle Hicks

Bill Chilton

Spencer Mason

Zachary Little

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