Van Sloten Enterprises Inc.

Van Sloten Enterprises Inc., doing business as Northern Sand & Gravel, supplies concrete, aggregates, sand, and topsoil to the U.S. Army Corps of Engineers as a prime contractor (100% of awards) on a woman-owned small business (WOSB) basis. The firm operates from Sault Ste. Marie, Michigan, competing without set-aside designation on full-and-open procurement, and specializes in concrete repair and construction materials supply for Great Lakes waterway infrastructure maintenance under primary NAICS 327320 (Ready-Mix Concrete Manufacturing) and 327992 (Construction Sand and Gravel Mining).

Customer concentration is extreme and singular. The Department of the Army Corps of Engineers accounts for 98% of all awards across two customer nodes — Engineering District Detroit (34 awards, $2.1 million combined potential value) and the Corps as a whole (15 awards, $2.3 million combined potential value) — with the top five customer classifications covering all recognized work. The vendor has no subcontract footprint and operates solely as a prime.

Van Sloten's work is routed exclusively through Blanket Purchase Agreements held with the Army Corps of Engineers Detroit District. The vendor sits on five active BPAs, led by BPA W911XK16A0001 with 11 task orders valued at $257 thousand combined potential value, BPA W911XK19A0003 with 7 task orders valued at $146 thousand, and three smaller BPAs collectively representing the remainder. The largest current vehicle is a single-award master BPA awarded July 30, 2024, with a $2.001 million ceiling through July 30, 2026, authorizing procurement of concrete, aggregates, sand, topsoil, and repair services on an as-needed basis for St. Marys Falls Canal infrastructure. Recent task orders under this master BPA include a $256,766 call for infield concrete supply issued April 8, 2026, with completion by November 1, 2026, and a $70,320 call for boom 14 south cylinder pit fill issued March 24, 2025, completed June 27, 2025. Earlier work included a $24,682 supply of 3,500 PSI concrete for Poe Stoplog rehabilitation (August 2023) and a $13,620 concrete repair task for MacArthur Lock Gate 5 sill (February 2022).

Activity remains minimal and flat. The vendor received one award in 2022, one in 2023, three in 2024, one in 2025, and one in 2026 — a pattern of sparse, sporadic ordering. Only one award ($257 thousand combined potential value) reaches ultimate completion inside the next twenty-four months, creating minimal recompete exposure. Combined potential value across the entire 53-award portfolio stands at $4.8 million, with only $1 million obligated (21% of potential), reflecting the vendor's role as an on-call materials and repair supplier rather than a sustained contract holder.