GRG Sanders & CO.

GRG Sanders & CO., operating through its Hub City Plumbing & Mechanical division and doing business as Hub City Plumbing And Mechanical, delivers HVAC maintenance, plumbing, and facilities repair services to the federal government exclusively as a prime contractor on a small-business set-aside footing, with a single-award Indefinite Delivery Contract (IDC) and task orders issued by the Department of Agriculture's Agricultural Marketing Service.

The vendor is a for-profit, tax-exempt corporate entity headquartered in Lubbock, Texas (502 FM 1585). Its prime work falls under NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors), with a secondary footprint in industrial building construction and facilities support. Hub City Plumbing competes exclusively under the Total Small Business set-aside category on its current and recent contracts. The vendor holds no IDIQs, GWACs, or agency-wide vehicles; instead, it operates as a single-source regional contractor through USDA AMS-issued IDCs and blanket purchase agreements.

Hub City Plumbing's customer concentration is extreme and deliberate. The Department of Agriculture accounts for 100% of awards across five subordinate program offices, with the Cotton and Tobacco Program responsible for 79 awards and $4.2 million of the combined potential value (96% of the total). The vendor has maintained an unbroken relationship with USDA AMS since at least 2006, providing monthly preventative maintenance, emergency repairs, leak detection, chiller and boiler service, chemical treatment, and system inspections for Cotton and Tobacco Program facilities in Lubbock and Lamesa, Texas. Recent representative work includes a $189,340 delivery order for preventative maintenance and scheduled HVAC inspections (awarded May 1, 2026, completion April 30, 2027); a $34,067 delivery order for water softener system replacement in Lamesa (awarded March 9, 2026, completion May 1, 2026); two $40,000 emergency repair delivery orders for all building systems in Lubbock and Lamesa (each awarded June 9, 2025, completion April 30, 2026); and a $222,188 four-year monthly HVAC maintenance contract at the Lamesa Classing Office (awarded December 4, 2023).

The vendor's vehicle footprint is limited to USDA-issued instruments. Hub City Plumbing holds a single-award, small business set-aside IDC valued at $973,784 (base period approximately one year plus four one-year option periods, awarded May 4, 2025, completion April 30, 2026) that consolidates HVAC and facilities maintenance services across AMS locations in Lamesa and Lubbock. Four delivery orders totaling $303,407 have been issued under this primary IDC. The vendor also places task orders under a USDA Blanket Purchase Agreement (AG4740B140001) with 54 task orders and $839 thousand combined potential value, and under three subordinate IDCs (12474020D0005, 12639525D0041, AG4740C100007) supporting AMS maintenance and repair work. All work is performed at USDA AMS facilities in west Texas, with no subcontractor involvement.

Activity has been episodic. The vendor received one award in 2021, one in 2022, three in 2023, four in 2025, and two in 2026, suggesting opportunistic task-order work rather than systematic growth. The combined potential value across 154 prime awards is $4.5 million, with $3 million obligated (66% of potential). One award valued at $189 thousand reaches ultimate completion within the next twenty-four months, representing minimal recompete exposure in that window. Hub City Plumbing operates as a specialist regional contractor with no federal prime vehicles, no subcontracting role, and no geographic or program diversification beyond USDA AMS facilities maintenance in Texas.