ENDIST Los Angeles

The Department of the Army Corps of Engineers Engineering District Los Angeles, a sub-agency of the U.S. Army Corps of Engineers within the Department of Defense, executes the Corps' regional mission of water resources management, flood risk reduction, infrastructure modernization, and military facility construction across the southwestern United States. The Los Angeles District procures construction, architect-engineer, renovation, and repair services for government and military facilities throughout California, Arizona, and Nevada, drawing from a portfolio that spans over three decades of contract activity.

The District has executed 5,752 federal contract awards with a combined potential value of $15.4 billion since 1996. Recent activity shows 121 awards in 2022, 124 in 2023, 105 in 2024, 108 in 2025, and 28 year-to-date in 2026, with the most recently recorded award dated August 31, 2026. The District has engaged 1,150 distinct prime contractors over its portfolio history. Contract competitive concentration is highly fragmented: the top five primes by award count hold 12 percent of recent awards, led by Environmental Assessment Services LLC (14 awards, $13.2 million combined potential value), Silver Mountain Construction LLC (13 awards, $44.1 million), and JM Construction Services Inc. (12 awards, $12.1 million). By potential value, concentration is equally fragmented at 12 percent coverage, dominated by ECC Constructors LLC (9 awards, $1.69 billion combined potential value)—a significant outlier—followed by Silver Mountain Construction LLC and Four Tribes Enterprises LLC at much smaller values. The set-aside mix is heavily weighted toward unrestricted awards: 58 percent carry no set-aside designation, 29 percent are 8(a) sole-source awards, 9 percent are total small business, 2 percent are competitive 8(a), and the remaining 2 percent distribute across SDVOSB, HUBZone, and WOSB designations.

Grant activity is minimal: the District has made only two federal grant awards since 2023, obligating $1.7 million in federal dollars cumulatively. Both awards are structured as Cooperative Agreements: Southern California Mountains Foundation received $1.2 million (awarded September 25, 2023), and Tohono O'odham Nation received $554 thousand (awarded September 29, 2025).

Recent contract opportunities reflect the District's core mission mix. Two sole-source architect-engineer services notices (due November 4, 2026) target Engineering During Construction support for the Brine Pipeline Access Improvements project and Valley Boulevard Brackish Water Transmission Pipeline under the Section 219 South Perris project, to be awarded to Black and Veatch and Tetra Tech respectively. Two pre-solicitation notices (due October 21, 2026) seek sources for design-build repair of the Imperial Dam Road at Yuma Proving Ground and Santa Clara River Levee Repair in Oxnard, with estimated values between $10 million and $100 million respectively. A total small business set-aside Design-Build-to-Budget solicitation (W912PL26RA046, due October 26, 2026) pursues an Airborne Equipment Parachute Repair Shop at Yuma Proving Ground. Multiple construction and facility leasing opportunities are open across California and Arizona, including a Multiple Award Task Order Contract for healthcare facility construction in California (due October 15, 2026) and office and retail space leases in Arcadia and Los Angeles. The District also issued a pre-solicitation for a Geotechnical MATOC IDIQ (due October 2, 2026) to establish pools of qualified architect-engineer firms.