What departments does David Mason + Associates (DMA) have?

David Mason + Associates (DMA) has employees across 8 departments including Marketing, Engineering, Program & Project Management, Human Resources, Arts & Design.

What is the largest department at David Mason + Associates (DMA)?

The largest department at David Mason + Associates (DMA) is Engineering with 5 employees.

Where are David Mason + Associates (DMA) employees located globally?

David Mason + Associates (DMA) has employees across 2 continents and 2 countries including United Kingdom Of Great Britain And Northern Ireland, United States Of America.

How has David Mason + Associates (DMA)'s team size changed over time?

David Mason + Associates (DMA)'s team has grown from approximately 117 to 119 employees based on available data.

David Mason + Associates (DMA) Employee Directory

Civil EngineeringMissouri, United States51-200 Employees

David Mason + Associates (DMA) is a civil engineering professional services firm established in 1989 and based in St. Louis, Missouri. The company employs 51 to 200 staff and operates with offices in St. Louis, Chicago, Philadelphia, and Tampa, with a 2024 expansion adding an office in Indianapolis, Indiana. DMA is a minority-owned business enterprise (MBE) offering planning, design, management, and inspection services across projects such as new facilities and infrastructure, renovations and expansions, utilities, tunnels and subsurface structures, stormwater management, and site development. Its client sectors include healthcare, commercial and institutional, aviation, education, parks and recreation, public and civic, utilities, and water and wastewater. The firm has received industry recognition, including being named a 2018 Businesses of the Year in St. Louis.

David Mason + Associates (DMA) Global Highlights

North America
173

United States Of America
173

Europe
1

United Kingdom Of Great Britain And Northern Ireland
1

David Mason + Associates (DMA)'s Leadership

W. S.
Managing Partner
Mobile Phone
Email
J. H.
Owner
Mobile Phone
Email
G. N.
Crew Chief
Mobile Phone
Email
S. M.
Vice President
Mobile Phone
Email
C. M.
Marketing Director
Mobile Phone
Email
K. L.
Director Of Architecture
Mobile Phone
Email
C. H.
Project Manager + Design Manager
Mobile Phone
Email
G. C.
Project Manager
Mobile Phone
Email

David Mason + Associates (DMA) Employee Metrics

100%

50%

0%

2026

2025

Arts & Design
Program & Project Management
Engineering
Administrative
Accounting
Other
Business Development
Human Resources

Contact profiles from David Mason + Associates (DMA)

Name

Title

Contact

Location

Last Update

W. S.
Managing Partner
Mobile Phone
Email
United Kingdom, Wales
Sep 11, 2026
J. H.
Owner
Mobile Phone
Email
Oct 22, 2024
G. N.
Crew Chief
Mobile Phone
Email
Sep 02, 2026
S. M.
Vice President
Mobile Phone
Email
Apr 25, 2025
C. M.
Marketing Director
Mobile Phone
Email
Oct 22, 2024
K. L.
Director Of Architecture
Mobile Phone
Email
Oct 23, 2024
C. H.
Project Manager + Design Manager
Mobile Phone
Email
Sep 09, 2026
G. C.
Project Manager
Mobile Phone
Email
Oct 23, 2024
J. M.
Regional Manager
Mobile Phone
Email
Oct 23, 2024
J. S.
Manager
Mobile Phone
Email
Jul 20, 2022

Frequently Asked Questions

What is David Mason + Associates (DMA) known for?

David Mason + Associates (DMA) was founded in 1989 and operates in the Civil Engineering industry. You can contact David Mason + Associates (DMA)'s main corporate office by phone at

+1-314-534-****

. Explore David Mason + Associates (DMA)'s company overview page for more information.

What is David Mason + Associates (DMA)'s most common email format?

David Mason + Associates (DMA) employees' email format typically follows the pattern of FLast@davidmason.com. Trying to find reliable and up-to-date employee contact data? Find more David Mason + Associates (DMA) email formats with LeadIQ.

How many employees does David Mason + Associates (DMA) have currently?

David Mason + Associates (DMA) has approximately 147 employees as of August 2026. These team members are located across 2 continents, including North America and Europe.

Who are David Mason + Associates (DMA)'s key employees and leadership?

As of August 2026, David Mason + Associates (DMA)'s key employees include:

Managing Partner: W. S.
Owner: J. H.
Crew Chief: G. N.
Vice President: S. M.
Marketing Director: C. M.

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David Mason + Associates (DMA) Employee Directory

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