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TWM, Inc. is an employee-owned professional consulting firm providing civil and structural engineering, land surveying, and other geospatial services for public, private, institutional, and governmental entities. The firm also partners to provide design-build services to the contracting industry and consulting services to architectural, geotechnical, and project management firms. With offices centrally located in Illinois, Missouri, and Tennessee, and the ability to work remotely via virtual platforms, the firm is positioned to serve clients across the U.S. For 79 years and counting, we pride ourselves on delivering our clients' projects on time, in budget, and done right. Our experience includes roads & bridges, railways, parks & trails, hospitals, schools, residential & commercial developments, and water, wastewater, & storm water infrastructure. Our team of skilled professionals is passionate about solving problems and cares deeply about providing exceptional service to our clients.

Website http://www.twm-inc.com/
Revenue $33.7 million
Funding $1 million
Employees 142 (99 on RocketReach)
Founded 1946
Address 4940 Old Collinsville Road, Swansea, Illinois 62226, US
Phone +1 618-624-4488
Technologies
Industry Civil Engineering, Architecture, Engineering & Design, Consulting, Transportation, Construction, Water / Wastewater, Land Surveying & GIS / Mapping, Structural Engineering, Construction Observation Services, Residential, Commercial, Institutional & Industrial Sites, Water Resources
Web Rank 15 Million
Keywords Professional Consulting, Civil Engineering, Engineering Consulting, Structural Engineering, Construction Consulting, Infrastructure Projects, Land Surveying, Design Services, Surveying Services, Geospatial Services, Project Management, Gis Services, Employee Owned, Mapping Services, Spatial Data, Governmental Services, Environmental Consulting, Public Sector, Private Sector, Institutional Clients
Competitors Grainger, Fastenal, Uline, MSC Industrial Supply Co., McMaster-Carr, Motion Industries, DigiKey, Cleveland Gear Co Inc, Westside Wholesale +34 more (view full list)
SIC SIC Code 87 Companies, SIC Code 871 Companies
NAICS NAICS Code 54137 Companies, NAICS Code 541 Companies, NAICS Code 5413 Companies, NAICS Code 54 Companies

TWM, Inc. Questions

The TWM, Inc. annual revenue was $33.7 million in 2026.

Rob Deconcini is the President of TWM, Inc..

99 people are employed at TWM, Inc..

TWM, Inc. is based in Swansea, Illinois.

The NAICS codes for TWM, Inc. are [54137, 541, 5413, 54].

The SIC codes for TWM, Inc. are [87, 871].

Top TWM, Inc. Employees

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