Brox Industries, Inc.

Brox Industries, Inc. Manchester Marine Corporation Division, a Subchapter S Corporation headquartered in Andover, Massachusetts, supplies aggregates and construction materials to federal shipyard and naval facility projects as a subcontractor under heavy civil engineering construction work (NAICS 48370, Other Heavy and Civil Engineering Construction). The vendor operates exclusively as a subcontractor — all five awards in the source record are sub-awards — and has no prime contract or IDV position.

All recent work flows through a single prime, 381 Constructors, serving the Department of the Navy Naval Facilities Engineering Command. Between September 2022 and September 2025, Brox has delivered aggregates including crushed stone (fine and coarse grade), 3/4-inch and 1½-inch stone, screened sand, and washed stone sand for the Portsmouth Naval Shipyard in Kittery, Maine. Notable sub-awards include a March 2023 delivery of 6,700 tons of fine-grade crushed stone, 3,300 tons of coarse-grade crushed stone, 12,000 tons of 3/4-inch stone, 12,000 tons of 1½-inch stone, 10 tons of screened sand, and 10,700 tons of washed stone sand, and two awards for AC-DC fiber relocation work packages (January 2024 and December 2024). The most recent award dated September 2025 covers a multi-mission dry dock facility project at the same shipyard, itemizing aggregates across multiple construction sub-packages.

The vendor's activity pattern is sparse and concentrated: one award per year in 2022 and 2023, two in 2024, and one recorded in 2025. Combined dollars obligated across all five awards total $623 thousand. With zero prime awards and no parent vehicle position, Brox operates as a materials supplier dependent entirely on 381 Constructors' Navy facility work, positioning the vendor as a specialized supplier in the naval construction and heavy civil engineering segment rather than a diversified contractor.