Southwest Gas Corporation

Southwest Gas Corporation, a for-profit natural gas utility company based in Las Vegas, Nevada, provides natural gas distribution, compressed natural gas services, and utility energy service contract (UESC) implementation to federal agencies as a prime contractor across 814 awards spanning nearly five decades. The vendor competes under full-and-open procurement without set-aside designations, holding two significant indefinite delivery vehicles worth $100 million and $50 million respectively.

Southwest Gas's customer base is heavily concentrated by dollar value in defense and veterans' health infrastructure. The top five funding agencies by potential value account for 51% of the combined portfolio: the Department of the Army Installation Management Command Southwest Region dominates at $244.6 million across 19 awards, followed by the U.S. Pacific Fleet Forces at $100.1 million (3 awards), the General Services Administration Public Buildings Service at $50 million (76 awards), the Department of Health and Human Services Indian Health Service at $16.8 million (29 awards), and the Department of Justice Bureau of Prisons Federal Correctional Complex Victorville at $6.1 million (40 awards). By award count, the Department of the Air Force leads with 452 awards — substantially larger than all other customers — though the portfolio summaries do not break out Air Force dollar concentration separately. Recent prime work includes a $384.1 million UESC implementation delivery order for Fort Irwin, California (Department of the Army, awarded September 2022, performance extending to September 2047), a $1.663 million investment grade audit and construction designs delivery order for VA utility energy service work in Las Vegas (Veterans Integrated Service Network 22, awarded October 2025), and a $749,999 Phase 1 investment grade audit for three energy conservation measures at Carl T. Hayden VA Medical Center in Phoenix (Department of Veterans Affairs, awarded September 2024, completing June 2026).

The vendor holds multiple parent vehicles anchoring its federal delivery: an Indefinite Delivery Contract (F0260485D0100) with 127 task orders, an Indefinite Delivery Contract (F2660085D0012) with 105 task orders, a Basic Ordering Agreement (F0460983D0013) with 71 task orders, a GSA Federal Supply Schedule (GS00T00115) with 70 task orders, and a GSA Indefinite Delivery Contract (GS00P13BSD1002) with 49 task orders carrying $406 million in combined potential value. The two largest IDVs by ceiling are a $100 million Basic Ordering Agreement for natural gas utility, compressed natural gas, and transportation services issued by U.S. Pacific Fleet Forces (May 2024, extending through June 2029) and a $50 million Indefinite Delivery Contract for natural gas and energy management services issued by the Department of Veterans Affairs Public Buildings Service (January 2024, extending through January 2034) covering franchised service areas in Arizona, Nevada, and California.

Recent award activity has been sparse: one award in 2026 (as of the source date), four in 2025, three in 2024, one in 2023, and eight in 2022. The combined potential value across all 814 awards stands at $824.4 million, with only $106.5 million obligated (13% of potential value), reflecting the long-term nature of utility service and UESC performance contracts. Only four awards carry ultimate completion dates within the next twenty-four months, with combined potential value of $2.2 million, indicating minimal recompete exposure in the near term. The vendor's capability portfolio is concentrated in natural gas distribution (338 awards) and pipeline transportation of natural gas (81 awards) under NAICS codes aligned with utility services, with PSC coding dominated by utilities-gas (735 awards) and utilities-electric (43 awards). Southwest Gas operates entirely as a prime contractor with no recorded sub-awards in the source portfolio.