Assabet Mack Service Inc.

Assabet Mack Service Inc., a for-profit subchapter S corporation based in Shirley, Massachusetts, provides equipment maintenance and repair services to the U.S. Army as a prime contractor on a single-award BPA, competing full-and-open without set-aside designations. The vendor operates almost exclusively under one parent vehicle — the Army Sustainment Command's five-year LRC Equipment Maintenance BPA (W911QY24A0001, $618,588.65 ceiling, awarded January 30, 2024, running through January 29, 2029) — which has generated thirteen task orders valued at $408 thousand in combined potential value. Assabet Mack Service delivers preventative maintenance, repair, and sustainment services for military equipment, vehicles, and heavy machinery at Fort Devens and Natick Soldier Center in the Ayer and Natick, Massachusetts region.

Customer concentration is acute. The Army Sustainment Command accounts for 93% of recent awards and 85% of combined potential value ($1.7 million across 18 awards), with secondary exposure to the Department of the Army's broader structure (7 awards, $126 thousand) and minimal diversification across Air National Guard, Research Development and Engineering Command, and other Army sub-commands. All work to date sits within the top vehicle; an older secondary BPA (W911QY19A0006) carried 11 task orders but has aged out of active call activity. The vendor's footprint is narrow by design — specialized equipment maintenance for a single customer through a single contracting vehicle with limited scope expansion.

Recent activity has accelerated in 2025, with nine awards issued across that fiscal year against the active W911QY24A0001 BPA, then two awards in 2026 (the most recent in April 2026). Individual task orders range from approximately $9,500 to $75 thousand in ceiling value, priced firm fixed price. Only one award carries ultimate completion inside the next twenty-four months (valued at $17 thousand), leaving minimal recompete pressure in the immediate horizon; however, the parent BPA itself runs through January 2029, placing recompete risk on the overall vehicle timeline rather than on near-term individual calls. The vendor holds one documented sub-award position, providing operational services to MIT Lincoln Laboratory under a federally funded research and development center contract prime-held by the Massachusetts Institute of Technology (awarded October 29, 2025). The sub-award carries no documented dollar value in the source.

Assabet Mack Service does not hold certifications for small business set-asides, HUBZone, women-owned, veteran-owned, or minority-owned status; the source records no SBA designations. The vendor's NAICS profile is dominated by commercial and industrial machinery repair and maintenance (NAICS 811310, 26 of 30 awards), with secondary work in general automotive repair and research development. PSC coding reflects the machinery focus — ground effect vehicles and motor vehicles maintenance/repair dominates the award distribution.