Double Diamond Ranch Supply

Double Diamond Ranch Supply, a woman-owned small disadvantaged business based in Elgin, Arizona, provides mule packing and backcountry transportation services to the federal government as a prime contractor exclusively under small-business set-asides. The vendor operates as a partnership or limited liability partnership and competes in the Transportation and Natural Resources PSC categories, with all eleven recent awards concentrated in a single customer relationship spanning sixteen years of performance.

Double Diamond Ranch Supply's entire federal footprint consists of mule packing, hauling, and supply-transport services at Saguaro National Park in Tucson, Arizona, delivered to the Department of the Interior National Park Service Intermountain Region. The vendor provides trained pack animals rated to carry 200 pounds per animal, qualified pack support riders and assistant packers, load-balancing management, and backhaul logistics across both the Tucson Mountain and Rincon Mountain districts of the park. Recent representative awards include a $149,790 Total Small Business Set-Aside purchase order awarded April 23, 2026 (extending through April 30, 2029) providing approximately eight day trips and six overnight trips annually for supply and material transport to backcountry locations; a $49,900 purchase order awarded April 22, 2025 (completing April 30, 2026) with no set-aside designation; and a $223,475 Total Small Business Set-Aside purchase order from April 28, 2022 structured as a base year plus four option years running through April 30, 2027. The vendor maintains an exclusive, multi-year operational relationship with Saguaro National Park and remains registered and active in SAM throughout performance.

Customer concentration is absolute — the Department of the Interior National Park Service Intermountain Region accounts for all eleven awards and the full $517 thousand in combined potential value. Activity has been episodic: two awards in 2014, isolated awards in 2021 and 2022, and a clustering of awards in 2025 and 2026. One award with combined potential value of $223 thousand faces ultimate completion inside the next twenty-four months and therefore presents recompete exposure.