Mckenzie Construction & Site Development LLC

Mckenzie Construction & Site Development LLC, a Washington, D.C.-based 8(a) certified minority-owned small disadvantaged business, operates as a general contractor delivering design-build and construction services to federal agencies across civilian and defense sectors entirely as a prime contractor (100% of recent awards). The firm is Black American owned and organized as a Subchapter S Corporation; it competes predominantly under Total Small Business set-asides, with Competitive 8(a) set-asides anchoring a significant portion of its Navy work.

Mckenzie's capability portfolio centers on commercial and institutional building construction (146 recent awards under NAICS 236220), HVAC system upgrades and mechanical contracting (38 awards under NAICS 238220), and road and site development work. Representative work includes a $12.6 million pavement replacement and repair contract with GSA for the Ysleta Land Port of Entry in El Paso, Texas (January 2025); an $8.7 million water system replacement at Organ Pipe Cactus National Monument in Arizona (May 2026) under a full-and-open competitive award; and a $9.56 million geothermal HVAC retrofit at Fort Hunter Liggett in California for the Army Corps of Engineers (September 2025). The firm also executes specialized infrastructure work: a $4.87 million irrigation system replacement for the Department of Interior (September 2026), a $2.81 million trail and boardwalk renovation at Pictured Rocks National Lakeshore for the National Park Service (July 2026), and a $5.87 million campground reconstruction at Lake Winfield Scott in Georgia under the Great American Outdoors Act (July 2026). Recent HVAC and mechanical work includes a $4.08 million pass-and-tag facility design-build at Naval Air Station Kingsville (August 2025) and a $2.43 million cooling tower replacement at the National Agricultural Library (September 2025).

Customer concentration is driven by federal facilities and military installation work. Naval Facilities Engineering Command leads by award count (27 awards, $1.14 billion combined potential value) and dominates the dollar rankings, followed by the Federal Aviation Administration (4 awards, $1.01 billion, anchored by a $999 million BOA for ATC facility design-build and bid-build services signed June 2025), Navy Installations Command (14 awards, $137.7 million), GSA Public Buildings Service (10 awards, $134.5 million), and the Internal Revenue Service (3 awards, $101.7 million). The top five customers by potential value account for 68% of combined dollars across the portfolio.

Mckenzie holds an expansive parent vehicle footprint that underpins its federal reach. The company anchors a $750 million single-award Competitive 8(a) IDIQ with Naval Facilities Engineering Command (awarded September 2022, through September 2030) for design-build, new construction, repair, and renovation services at Navy and Marine Corps facilities in the Washington D.C., Maryland, and Virginia area; this vehicle has generated 27 awards to date including waterfront repairs, pack-out operations, chiller plant optimization, and fire protection upgrades. Mckenzie also holds the $99 million Design-Build for Naval Facilities Engineering Systems Command Southeast 2022–2027 multiple-award IDIQ (Navy Installations Command, August 2022), which has funded 11 task orders for runway repairs, hangar structural work, and facility renovations at Texas naval air stations. The firm gained major new vehicles in FY2026: a $360 million Job Corps National Office IDIQ (September 2026, through August 2031) for nationwide design-build and construction across 121 Job Corps facilities; a $200 million Communications Electronics Command multiple-award MATOC for Tobyhanna Army Depot maintenance, repair, and construction (September 2026, through September 2031); a $193 million Army Southeast Region indefinite-delivery contract for Fort Benning public works construction (July 2026); and a $71.9 million Air Force Materiel Command multiple-award construction contract (June 2026). Mckenzie also placed task orders under the $45 million USDA Agricultural Research Service Plains Area MEP MATOC (September 2024), the $200 million Naval Facilities Engineering Command Southwest HVAC system projects IDIQ (April 2025), the $150 million NAVFAC Hampton Roads HVAC and mechanical construction IDIQ (September 2024), and the $49.9 million USDA Region 8 Southern Region single-award IDIQ (September 2024). A $999 million BOA with the Federal Aviation Administration for nationwide ATC facility design-build and bid-build (June 2025) and a $99.9 million IRS design-build blanket purchase agreement (August 2023) complete the major vehicle holdings.

Award activity has remained stable—36 awards in 2022, 34 in 2023, 33 in 2024, declining to 29 in 2025 and 22 year-to-date in 2026. Thirty-two awards with ultimate completion dates in the next twenty-four months carry combined potential value of $114.8 million, representing a significant recompete cliff spanning Tobyhanna Army Depot work, Job Corps facilities, the FAA BOA pipeline, and multiple GSA, Navy, and USDA task orders.

SCI-reported federal service contract invoicing totaled $10 million across FY2022–FY2024 (FY2025 reflects zero reportable invoicing, likely lag in reporting), reflecting contract work above the $150,000 reporting threshold. FY2024 showed the highest SCI-reportable activity at $8.9 million across 9.2 FTEs; prior years ranged from $345,000 to $754,000. Government-paid hourly rates on these SCI-reportable service contracts ran from $291/hr at the 10th percentile to a median of $609/hr and up to $2,113/hr at the 90th percentile, consistent with technical and supervisory labor on federal construction projects. Mckenzie delivered 100% of its SCI-reportable service work with no named subcontractors across the contracts captured in the dataset.

The firm operates as a pure prime contractor across its federal footprint, competing directly for work rather than serving as a subcontractor to larger primes. Its recent growth into new vehicle holdings (Job Corps, Fort Benning, Tobyhanna, expanded NAVFAC coverage) reflects successful capture of large multiple-award IDIQs, positioning it for sustained task-order volume across civilian facilities, military construction, and federal property maintenance through 2031.

General Contractor specializing in Design Build Civil and Mechanical Construction, Renovations, Electrical, Plumbing, Framing, Concrete work, Paving, Sewer/Water/Storm Piping, Lead/Asbestos Abatement, Window Washing Anchor Bolts