Capitol Building Supply Inc.

Capitol Building Supply Inc., a for-profit tax-exempt corporate entity based in Manassas Park, Virginia, supplies construction materials, building supplies, and hardware to federal agencies as a prime contractor on purchase orders, with minimal subcontract exposure (97% of recent awards are prime positions).

Capitol Building Supply operates without SBA set-aside designations and competes on full-and-open purchase orders across a fragmented customer base of 28 federal agencies. The vendor's primary business classifies under NAICS 423310 (Other Building Material Dealers), with secondary NAICS categories including Hardware Stores, Drywall and Insulation Contracting, and Construction Material Merchant Wholesaling. Product focus, reflected in PSC codes, concentrates on Miscellaneous Construction Materials, Wallboard and Thermal Insulation Materials, Commercial Hardware, and Office Building Maintenance supplies.

Customer concentration is moderate but dispersed. The top five agencies account for 51% of award count and 67% of combined potential value, led by the Smithsonian Institution (23 awards, $141 thousand combined potential value) and the Department of the Navy Secretary of the Navy Office of Naval Research (21 awards, $140 thousand combined potential value). The Department of Justice Federal Bureau of Investigation Headquarters Division, Department of Energy Headquarters, and Department of State Bureau of Overseas Building Operations round out the active top tier. The vendor's primary vehicles include three task orders on IDC DADA1592D0014 (an Army indefinite delivery contract), two task orders on GSA Federal Supply Schedule GS28F7030G, and single-award positions on Navy IDC N0017321D2001 and a multi-year D.C./Maryland/Virginia large general construction BPA running through 2028.

Recent representative awards include a $48,464.80 purchase order from the Washington Headquarters Service for construction supplies (July 2026, Frederick, Maryland performance, completion August 2026), a $6,412.20 order from the Smithsonian Institution for masonite and related materials (September 2022), and an $8,589.76 order from the National Gallery of Art for exhibit shop supplies (May 2022). Activity has remained sparse — one to three awards per year across the past five years — with a combined potential value across 110 total awards of $695 thousand. The vendor also subcontracts minimally: three sub-awards across Balfour Beatty Construction LLC (Ward Hall renovations hardware and framing, November 2024), ASRC Federal System Solutions LLC ($225 thousand incremental funding task order, May 2024), and General Dynamics Information Technology Inc. (security and supply chain services products, January 2024). Award data spans three decades, with the first award recorded in September 1992, but recent velocity suggests limited federal procurement pipeline intensity.