Westair Gases & Equipment, Inc.

Westair Gases & Equipment, Inc., doing business as San Diego Welders Supply, operates as a for-profit subchapter S corporation and prime contractor supplying compressed and liquefied industrial gases, welding equipment, and related technical services to Department of Defense, Department of Veterans Affairs, and federal research facilities across 37 customer agencies. The company competes predominantly full-and-open with no set-aside profile, though individual purchase orders occasionally carry small-business set-asides. Westair is headquartered in San Diego, California, and operates across NAICS 325120 (Industrial Gas Manufacturing) as its primary category, with secondary capability in industrial machinery wholesaling and welding equipment.

Westair's customer base concentrates heavily in naval and defense logistics. The Department of the Navy accounts for the largest share by award count: the Bureau of Medicine and Surgery leads with 145 awards ($447 thousand combined potential value), Naval Sea Systems Command follows with 40 awards ($1.6 million), United States Pacific Fleet Forces brings 32 awards ($173 thousand), and Naval Air Warfare Center contributes 11 awards ($328 thousand). The Department of Veterans Affairs Veterans Integrated Service Network 22 ranks fourth with 21 awards ($1.1 million). These five customers alone cover 72% of recent awards. By potential value, the ranking shifts slightly: Naval Sea Systems Command anchors the dollars at $1.6 million, followed by VA VISN 22 at $1.1 million and Air Force Materiel Command at $894 thousand, reflecting larger individual contract sizes with the Navy and smaller but consistent volume with medical and research customers.

Westair holds three significant parent vehicles. An Indefinite Delivery Contract (N0025905A0002) supports 65 task orders with minimal combined potential value ($6 thousand), indicating high-velocity, low-dollar medical supply ordering through this Navy vehicle. A second IDC (SPMYM212D0004) carries 5 task orders worth $132 thousand combined. Westair recently secured a single-award Blanket Purchase Agreement with the Air Force Research Laboratory (AFRL West Gases BPA III), valued at $776,321.95 and running through November 2029, for compressed and liquefied gases to support research and testing at Edwards Air Force Base. A second BPA with Air Force Materiel Command, valued at $530 thousand through April 2028, covers industrial gas resupply across multiple Air Force installations. A Defense Logistics Agency Energy IDC, valued at $1.797 million through October 2027, covers liquid carbon dioxide delivery to Yuma Proving Ground in Arizona. Representative prime work includes a Bureau of Reclamation purchase order for argon gas lab supply ($35,600, total small business set-aside, through August 2027), multiple Naval Sea Systems Command orders for argon bulk liquid refill ($94,188, total small business) and tank installation ($67,750), and Naval Air Warfare Center orders for liquid helium delivery (ranging from $16,932 to $61,215 per order).

Recent activity shows moderate pace with eleven awards in 2024, seven in 2025, and one in 2026 year-to-date. Only three awards face ultimate completion within the next twenty-four months with combined potential value of $163 thousand, indicating minimal recompete pressure in the near term. In its subcontractor role, Westair supplies welding gases and equipment to construction and aerospace primes: Manson Construction Company received multiple sub-awards for acetylene, oxygen, and propane on Pier 6 replacement work at Naval Base San Diego (October 2021), BAE Systems Maritime Solutions received services on a welding equipment task order (September 2024), and Astrobotic Technology received a 1000-liter megacyl container lease for reusable suborbital vehicle testing (May 2025). Grant sub-work with General Atomics spans chemicals, reagents, and gases across nine sub-awards from December 2023 through October 2025. The vendor's federal portfolio is dominated by industrial gas supply (115 awards under PSC 6830-P for compressed and liquefied gases), with secondary depth in medical and surgical supplies (57 awards under PSC 6510-D for drugs and biologicals) reflecting the high-volume Navy medical ordering volume.