L S Marine Inc.

L S Marine Inc., operating through its LS Marine, Inc. Division, is a self-certified small disadvantaged business specializing in mechanical dredging, channel maintenance, dredge material placement, and related water construction services as a prime contractor (100% of recent awards) to the U.S. Army Corps of Engineers across the Midwest and Southeast. The company is a for-profit Subchapter S corporation headquartered in Inver Grove Heights, Minnesota, competing predominantly under small business set-asides—the majority of its definitive contracts carry Total Small Business designations, though most delivery orders against existing indefinite delivery contracts do not.

L S Marine operates almost exclusively within the federal dredging market, with 468 of its 495 total awards falling under NAICS 541740 (Other Heavy and Civil Engineering Construction), concentrated in PSC codes 4210 (Construction Of Canals) at 209 awards and 4390 (Repair Or Alteration Of Other Non-Building Facilities) at 171 awards. Recent representative work includes a $7.374 million definitive contract awarded April 15, 2026, by the Army Corps of Engineers St. Paul District for Corps Island Unloading in Welch, Minnesota, under a Total Small Business set-aside with completion by September 30, 2027; a $2.801 million firm fixed-price contract (October 28, 2023) for HDPE pipe installation to enable hydraulic transfer of dredged sand from the Mississippi River to the Wabasha Gravel Pit; and a $21.907 million definitive contract (September 26, 2022) for the Upper Pool 4 Project near Lake Pepin, Wisconsin, involving aquatic and wetland habitat restoration, dike construction, and shoreline protection, also set aside for small businesses.

Customer concentration is extreme and single-agency dominant. The Department of the Army Corps of Engineers as a whole accounts for all 494 awards across the portfolio, split between the St. Paul District (252 awards, $79.3 million combined potential value) and the broader Army Corps designation (212 awards, $146.3 million combined potential value), with a small allocation to the Savannah District (30 awards, $3.6 million). The St. Paul District anchors the majority of L S Marine's recent activity, representing the Upper Mississippi River navigation and maintenance mission.

L S Marine holds a primary $31.794 million single-award Indefinite Delivery Contract (W912ES24D0008) with the Army Corps of Engineers St. Paul District, effective May 1, 2024, through February 28, 2029, set aside for small businesses and authorizing mechanical dredging, channel dredging, dredge material placement, sand placement, shoreline stabilization, and aquatic habitat construction across the Upper Mississippi River (miles 614.0 to 857.6) and Minnesota River (miles 0.0 to 14.7). Through November 2025, the company executed forty-four delivery orders totaling approximately $9.9 million under this vehicle, representing 31 percent utilization. The vendor also holds three older indefinite delivery contracts: W912ES19D0006 (136 task orders, $27.8 million combined potential value), W912ES14D0003 (145 task orders, $18.2 million combined potential value), and W912ES11D0001 (68 task orders, $12.7 million combined potential value), providing a deep bench of established contract vehicles for ongoing Corps dredging procurement.

Activity has remained relatively stable over the past five years, averaging 21 to 29 awards annually—28 awards in 2022, 29 in 2023, 21 in 2024, and 24 in 2025—with only 3 awards reported in the early months of 2026. The recompete cliff in the next twenty-four months shows minimal risk: only 2 awards with ultimate completion dates in that window carry combined potential value of $29.3 million, far below the vendor's contract ceiling exposure. The primary $31.794 million single-award IDC awarded in May 2024 does not face recompete until February 2029, providing stable delivery-order flow through that date.

L S Marine operates as a pure prime contractor (100% prime, 0% subcontracted), building its own delivery capability rather than relying on subcontractors. Service Contract Inventory data covering federal service contracts above $150,000 shows minimal SCI-reportable activity (one record in FY2024 as a named subcontractor), indicating the vendor's primary revenue comes from goods-dominant construction contracts—dredging equipment, material placement, and project execution—rather than labor-intensive services contracts subject to SCI reporting thresholds. The vendor's footprint is concentrated geographically in the Upper Mississippi River corridor (Minnesota, Wisconsin, Iowa) and the Savannah District, with places of performance spanning Savage, St. Paul Park, Lansing, Red Wing, Welch, Trempealeau, and surrounding Midwest and Southeast locations. As a small disadvantaged business with established sole-source and set-aside vehicle positions anchoring the Army Corps of Engineers' dredging portfolio, L S Marine's competitive posture is insulated from full-and-open competition on its core contracts, though individual delivery orders frequently compete without set-aside designation.