Terracon Consultants, Inc.

Terracon Consultants, Inc., a 100% employee-owned engineering and environmental consulting firm headquartered in Olathe, Kansas, delivers geotechnical investigation, materials testing, environmental sampling, and site characterization services to federal agencies as a prime contractor on 53% of recent awards and as a subcontractor on the remaining 47%, competing on an unrestricted, full-and-open basis with no SBA set-aside designations. The firm is a subsidiary of parent company Tsvc, Inc., which also owns five additional operating subsidiaries including Midwest Testing Laboratory, Inc. and Nodarse & Associates, Inc., bringing complementary geotechnical and testing capabilities under unified corporate ownership.

Terracon's customer concentration anchors heavily with the Department of the Army, particularly the Army Corps of Engineers. The top five customer agencies by award count account for 38% of recent awards, led by the Department of Transportation Federal Highway Administration (20 awards, $5 million combined potential value), the Army Corps of Engineers Engineering District Rock Island (17 awards, $3.3 million), and the Army Corps of Engineers broadly (14 awards, $15.4 million). By dollar value, the same customer mix holds: the Army Corps of Engineers accounts for the largest share at $15.4 million across 14 prime awards, followed by the Albuquerque District at $5.3 million and FHWA at $5 million. Terracon operates across 58 distinct federal agencies, indicating diversified customer exposure despite Army concentration.

Terracon holds a strong footprint on indefinite-delivery vehicles. The GSA Multiple Award Schedule carries 15 active task orders valued at $25.7 million combined potential value, the largest single vehicle by dollar value. Within Army Corps of Engineers IDCs, Terracon places work under contract W912EK14D0008 (17 task orders, $865 thousand combined potential value), contract W912EQ23D0003 (7 task orders, $552 thousand), and a $5 million BPA with ENDIST Albuquerque covering geotechnical services across Southern Colorado, New Mexico, and West Texas. A newly awarded $25 million multiple-award BPA with ENDIST Jacksonville on May 1, 2026, covers cultural resource assessment and Phase II National Register of Historic Places testing through April 30, 2031. A $5 million Army Corps of Engineers BPA awarded December 8, 2025, through December 7, 2030, replaces the predecessor W912P825Q0032/W912P826QA004 vehicle and covers engineering testing, construction material testing, and inspection services. Representative recent prime work includes a $565,000 USDA APHIS delivery order for annual stack testing of incinerators at the National Bio- and Agro-Defense Facility in Manhattan, Kansas (awarded March 13, 2025), a $335,181.98 United States Mint purchase order for industrial hygiene sampling and testing at San Francisco (awarded August 28, 2023), and multiple Army Corps geotechnical investigation and drilling task orders in the $30,000–$140,000 range supporting levee renovation, flood risk management, and infrastructure projects across Arkansas, Tennessee, and New Mexico.

Activity has grown significantly year over year, from five awards in 2022 to 40 in 2025, though 2026 shows 14 awards to date (as of the October 15, 2026 snapshot). Only two prime awards face completion within the next twenty-four months, with a combined potential value of $423 thousand, minimizing recompete risk in that window. Terracon's award portfolio spans 59 awards in Engineering Services (NAICS), 26 in Testing Laboratories and Services, 21 in Geophysical Surveying and Mapping Services, 18 in Environmental Consulting Services, and 10 in Remediation Services, reflecting a diversified technical capability set anchored in site characterization and materials science.

Terracon operates as a predominantly prime contractor with its own internal delivery capacity rather than a subcontractor-dependent model. The SCI (Service Contract Inventory) dataset captures 70 records across FY2022–FY2025, with 69 as subcontractor records and 1 as a prime SCI record, showing roughly 1.7 FTEs delivered to federal clients in FY2025 through SCI-reportable service contracts—a small slice of Terracon's federal work, reflecting the vendor's primary reliance on lower-threshold task orders, purchase orders, and delivery orders not fully captured in SCI's $150,000-plus reporting floor. Across SCI-reportable prime contracts, the vendor reported zero sub-engagement hours, indicating internal execution rather than subcontracting on those engagements. The GSA Schedule labor portfolio spans 20 active categories priced from $71.74 per hour (clerical) through $208.34 per hour (facilities principal), with mid-spectrum positions such as Project Manager at $144.94/hr and Senior Project Manager at $167.24/hr, requiring bachelor's degrees and up to 15 years of experience; no security-cleared positions are offered on the Schedule.

Terracon subcontracts heavily to prime contractors on infrastructure and military construction projects. Recent sub-award activity names Jacobs Government Services Company as the most frequently cited prime (appearing on 18+ sub-awards since 2022), followed by AECOM Technical Services, Inc., Barge Emersion Joint Venture, Parsons Government Services Inc., Barge Emersion Joint Venture, Amentum Technology, Inc., and others. Sub-award scope typically includes geotechnical engineering services, field testing and laboratory analysis, hazardous material sampling and clearance testing, geophysical surveying, and soil density and moisture-content verification on military facility repairs, air traffic control tower design, runway recapitalization, and water resources infrastructure projects. This sub pattern reflects Terracon's positioning as a specialized technical service provider feeding into larger design-build and architecture-engineering primes rather than as a full-systems integrator.

Terracon participates in limited federal grant work. The source lists sub-award activity under the Kansas Department of Health & Environment (Brownfields Remediation and Site Characterization programs, including Phase 1 assessments and asbestos operations support) and sub-recipient status on a Defense POW/MIA Office (DPAA) field investigation and recovery activity awarded through the Henry M. Jackson Foundation. This grant activity is modest relative to the prime and sub contract footprint and does not appear to drive a material portion of the vendor's federal revenue.