Amherst Madison, Inc.

Amherst Madison, Inc., doing business as Amherstmadison, provides specialized marine construction, mechanical dredging, and inland waterway maintenance services to the U.S. Army Corps of Engineers as a prime contractor on full-and-open federal contracts with no set-aside designations. The Charleston, West Virginia-based for-profit Subchapter S corporation competes entirely in unrestricted procurement; it holds a portfolio of 462 prime federal awards valued at $482.8 million combined potential value, with $239.7 million obligated to date.

Amherst Madison's customer concentration is absolute: the Department of the Army Corps of Engineers accounts for 226 awards and $304.1 million combined potential value across its footprint. Disaggregating the Corps' internal structure reveals hyper-regional focus—the Huntington District Engineering District alone represents 176 awards and $155.8 million, dwarfing the Pittsburgh District (26 awards, $15.7 million), Louisville District (5 awards, $2.2 million), and Nashville District (2 awards, $1.8 million). The concentration across the top five customers is 95% of awards and 99% of combined potential value. Amherst Madison's concrete capability set centers on mechanical and clamshell dredging, lock and dam maintenance dredging, forebay debris removal, open-channel dredging on Ohio, Big Sandy, Kanawha, Cumberland, and Green Rivers, streambank protection, aquatic mitigation, barge and vessel rehabilitation, and marine fleet fueling support. Recent representative work includes a $2.19 million FY 2025 Buckeye Shore-to-Wing dredging delivery order (July 2025, USACE Huntington), a $1.73 million FY 2025 Post Oak and Looney Island dredging order (September 2025, USACE Huntington), and a $3.08 million Bluestone Dam aquatic mitigation and deobligation modification (June 2022, USACE Huntington).

Amherst Madison operates under five major parent vehicles with the Corps. The two largest indefinite delivery contracts are the $75 million Design Bid Build Marine Based Construction for LRD River Districts vehicle (awarded September 2022, expiring September 2027, covering Huntington and Pittsburgh Districts) and the $45 million Regional Mechanical Dredge contract (awarded January 2022, expiring January 2027, covering Huntington, Louisville, Nashville, and Pittsburgh Districts). Three additional indefinite delivery vehicles—Contracts W9123705D0002 (46 task orders, $11.7 million combined potential value), W9123709D0011 (36 task orders, $12.6 million combined potential value), and W9123722D0003 (35 task orders, $26.1 million combined potential value)—account for the majority of remaining task order activity. The vendor's NAICS footprint is dominated by Other Heavy and Civil Engineering Construction (295 awards), with secondary exposure in Fabricated Structural Metal Manufacturing (14 awards) and Ship Building and Repairing (12 awards). PSC coding aligns with scope: Construction of Other Non-Building Facilities (86 awards), Construction of Dredging Facilities (42 awards), and Construction/Other Conservation (39 awards).

Activity shows decline: from 16 awards in 2022 to a low of 2 awards year-to-date in 2026 (as of April 15, 2026). Recompete exposure in the next twenty-four months is modest—only 4 awards valued at $245 thousand face ultimate completion inside that window, suggesting most active work extends beyond mid-2027. Amherst Madison has operated continuously in the federal space since at least 1986 (first award in source data). The vendor does not appear as a subcontractor in the source material and maintains no sub-award footprint; 100% of its federal work is prime contracting.