Thouvenot Wade & Moerchen Inc.

Thouvenot Wade & Moerchen Inc., doing business as T W M, is a 100% employee-owned civil engineering and surveying firm based in Swansea, Illinois, that delivers geospatial services and surveying expertise to the federal government as a prime contractor (96% of recent awards) under full-and-open procurement with no set-aside designations. The firm specializes in topographic surveys, bathymetric surveys, LIDAR mapping, hydrographic data collection, boundary surveys, and architect-engineer support services for water-resource infrastructure and military installation real estate projects.

Customer concentration is acute. The Department of the Army Corps of Engineers (USACE) and its Engineering District St. Louis account for all activity in the source data: the Engineering District St. Louis alone holds 45 awards valued at $15.1 million combined potential value, while the broader USACE holds 46 awards valued at $4.6 million, for a combined 100% coverage of the top customers by both count and dollars. The Environmental Protection Agency Region 5 appears as a minor third customer with three sub-awards. This customer concentration reflects a dominant relationship with a single contracting office.

T W M's federal prime work routes almost entirely through two USACE IDIQs. The Indefinite Delivery Contract W912P922D0003 (Engineering District St. Louis) carries 56 task orders valued at $6.8 million combined potential value and runs through February 2027. The Indefinite Delivery Contract W912P916D0008 carries 32 task orders valued at $2.9 million. Representative delivery orders under these vehicles include a $1.2 million multi-beam survey of the Missouri River (September 2023), a $508,000 delivery order for hydrographic surveying and architect-engineer services (September 2025), a $487,588 optional CLIN modification for supplemental surveying work (September 2024), a $345,096 gates-and-gaps boundary survey (July 2025), and a $318,000 topographic survey of Hog Island (January 2026). The firm holds a $7 million umbrella IDIQ contract with USACE for field and automated hydrographic surveying and architect-engineer services running through February 2027, which serves as the parent vehicle for the majority of its task orders. Individual task orders under the IDIQ portfolio range from under $5,000 to over $1.2 million, with work performed across geographically diverse locations including Swansea Illinois, Colorado Springs, and Peterson Space Force Base.

Activity has been volatile in recent years. T W M received 20 awards in 2023 (the peak), 14 in 2022, 13 in 2024, 11 in 2025, and 3 in 2026 year-to-date, signaling a declining trajectory. Ten awards with ultimate completion dates in the next twenty-four months carry a combined potential value of $1.9 million and face recompete exposure.

T W M operates as a prime contractor on 90 awards (96%) and as a named subcontractor on four awards (4%). Sub-award work includes surveying and mapping services on three Superfund remedial action projects under Ch2M Hill Inc. (December 2025, April 2025, and July 2024 for Franklin Street remediation) and one residential remediation project under Environmental Quality Management Inc. (March 2024). The Service Contract Inventory dataset captures minimal T W M activity — a single sub-award record in FY2024 — reflecting that most T W M work is priced as firm-fixed-price delivery orders on goods-and-services contracts rather than open-ended service contracts above the $150,000 SCI threshold.

T W M's award footprint spans 94 total contracts and sub-awards (prime and sub combined) since 2015, with $19.7 million combined potential value and $9.1 million obligated (46% takedown). The category concentration is sharp: 90 awards fall under NAICS 541370 (Surveying and Mapping Services except Geophysical), with remediation services accounting for the remaining four. PSC coding reflects architect-engineer services, with 53 awards under A/E General (Landscaping, Interior Layout, and Designing) and 37 under A/E General (Other).

TWM provides Civil & Structural Engineering, Land Surveying, and Planning services to public and private sector clients. With over 78 years in business, TWM disciplines include Transportation, Structures, Land Development, Water / Wastewater, and Surveying / 3D Scanning / GIS.