Dunbar Mechanical Contractors, LLC

Dunbar Mechanical Contractors, LLC, a service-disabled veteran-owned small business headquartered in Memphis, Tennessee, operates as a prime contractor delivering mechanical contracting, HVAC systems maintenance and replacement, construction, and facility infrastructure services to the federal government, with 100 percent of recent awards held as prime contracts. The company is SBA-certified as both a Veteran-Owned Small Business and a Service-Disabled Veteran-Owned Small Business (SDVOSB), with certifications valid through May 10, 2028. Dunbar competes predominantly under SDVOSB set-asides across its prime footprint, with recurring sole-source awards, competitive 100-percent SDVOSB set-asides, and full-and-open procurements; the vendor does not engage subcontractors and performs substantially all work with internal labor.

The Department of Veterans Affairs dominates Dunbar's customer base with extraordinary concentration. The VA's Veterans Integrated Service Network 9 (the Tennessee Valley Healthcare System regional network) accounts for 297 of 318 awards (97 percent of award count) and $256.5 million of $375.4 million in combined potential value (68 percent). Three other VA networks—VISN 17, VISN 15, and the VA Technology Acquisition Center—together add another $60.7 million in potential value. Non-VA customers include the Department of the Interior National Park Service Southeast Region ($139 thousand), the Department of the Army Corps of Engineers Memphis District ($2.6 million), and the Army Corps' Savannah District ($49 million). Dunbar's capability portfolio, grounded in award descriptions, encompasses emergency and planned replacement of HVAC equipment (chillers, cooling towers, air handling units, coils, pumps); mechanical systems infrastructure (steam pipes, condensate systems, water heaters); plumbing and drainage system work; electrical system upgrades; construction and renovation of VA medical center facilities; and facility maintenance and repair services across mechanical, structural, and utility domains. Representative work includes a $13.2 million SDVOSB-set-aside definitive contract awarded November 2024 for chilled water loop replacement and underground distribution piping at Alvin C. York VA Medical Center in Murfreesboro, Tennessee; a $16.6 million SDVOSB-set-aside design-build contract for an Integrated Health Center minor construction project at the same facility, awarded September 2023; a $4.4 million renovation and expansion of physical medicine and rehabilitation services at Murfreesboro, awarded December 2022; and a $1.2 million USDA cotton classing lab HVAC equipment replacement in Memphis, awarded August 2023.

Dunbar holds a $45 million multiple-award task order contract (MATOC) for construction, repair, and renovation services at Tennessee Valley Healthcare System facilities, awarded September 30, 2024, running through September 29, 2029, under a 100-percent SDVOSB set-aside. This is the vendor's primary vehicle; four recent delivery orders under this MATOC show combined potential value of $1.9 million across task orders ranging from $4,632 to $1,472,631. The vendor also sits on three other indefinite delivery contracts with VISN 9: contract VA24914D0004 (29 task orders, $11.5 million combined potential value), contract 36C24919D0061 (22 task orders, $13.9 million combined potential value), and contract VA24914D0017 (15 task orders, $5.5 million combined potential value). Together these vehicles support the vendor's recurring purchase-order and delivery-order flow for emergency repairs, planned facility upgrades, and construction projects across VA medical centers in Tennessee and adjacent regions.

Activity has grown steadily, from 16 awards in 2022 to 30 in 2024, with 21 awards in 2025 and 26 year-to-date through September 2026. Combined potential value across all 318 awards stands at $375.4 million, with $139.1 million obligated (37 percent). Seven awards totaling $18.3 million in combined potential value reach ultimate completion within the next twenty-four months and face recompete exposure. Award distribution reflects Dunbar's operational footprint: work is performed at VA Medical Centers in Murfreesboro, Nashville, and Memphis, Tennessee, as well as subordinate Tennessee Valley Healthcare System facilities across the VISN 9 region. The vendor has also completed work in Bartlett and Lexington (Kentucky), and one contract involves a site in Murfreesboro at Stones River National Battlefield under National Park Service Southeast Region sponsorship.

On federal service contracts captured in the Service Contract Inventory, Dunbar reported invoiced revenue of $9.5 million in FY2023, $14.8 million in FY2024, and $13.1 million in FY2025, across roughly 18–20 FTEs per fiscal year. Government-paid hourly rates on SCI-reportable prime contracts show a median of $373.45 per hour, with the tenth percentile at $33.77 per hour and the ninetieth percentile at $4,371.26 per hour; the wide spread reflects a portfolio spanning low-skill facility labor, skilled trades, and project management. The vendor engages zero subcontractor hours across SCI-reportable prime contracts, indicating a build-it-yourself delivery model. The vendor's primary NAICS categories are 236220 (Commercial and Institutional Building Construction, 148 awards) and 238220 (Plumbing, Heating, and Air-Conditioning Contractors, 90 awards), with smaller concentrations in electrical contracting and equipment repair. The top PSC categories are facility maintenance, repair, and construction for hospitals and infirmaries, and maintenance and repair of HVAC equipment, reflecting the VA healthcare infrastructure mission that anchors the vendor's business.

Mechanical Contractor specializing in HVAC, piping, chillers, boilers, pumps, cooling towers, underground fuel lines, energy efficient systems, controls, design build projects.