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

Zachary Little

Spencer Mason

James C. Gleaton

Rosie Kaftantzis

Diane Patterson

Gerard A Wills

Carl Navales

Ronnie Lowe

Michael Maxwell

Engineering Team

Project Management and Coordination Team

Leadership Team

Finance Team

Marketing Team

Teams at David Mason + Associates (DMA)

Engineering Team

Project Management and Coordination Team

Leadership Team

Finance Team

Marketing Team