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TWM named a 2022 Top Design Firm by ENR Midwest

TWM, Inc., one of the top 10 largest engineering and geospatial firms in the greater St. Louis area, announced it has earned a spot as a Midwest Top Engineering Design Firm by Engineering News-Record in their annual listing. ENR annual lists are considered an industry benchmark and the ranking is based on design-specific revenue and ranks the largest U.S-based design firms, both publicly and privately held. This is the first year TWM has secured a position on this list.

TWM ranks #76 out of 122 firms on the list. ENR Midwest is a top news source for the A/E/C industries and ranks design firms based on revenue earned in 11 different regions, and includes breakout rankings based upon project sectors, work type, and state-by-state activity.

“This is an exciting honor,” said Robert DeConcini, president. “Our ranking on this list recognizes the hard work and dedication of our talented workforce to reach this milestone. We are thrilled to be recognized and thank our wonderful clients for helping us achieve this industry-specific distinction.”

TWM continues to grow and expand its engineering and geospatial services footprint, serving clients locally, regionally, and across the U.S.

Celebrating 75 years in business, TWM is a 100 percent employee-owned firm providing civil and structural engineering, land surveying, and other geospatial services. From its beginnings in Belleville, Ill., in 1946, TWM has grown to the successful firm it is today, with its corporate headquarters in Swansea, Ill., and now eight additional offices throughout the Midwest and Southeast. Learn more about TWM at

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