Mcgrath Rentcorp

McGrath Rentcorp, doing business as Mobile Modular, manufactures and leases prefabricated modular office trailers, temporary facilities, and storage containers to the federal government as a prime contractor (89% of recent awards) competing full-and-open with no set-aside designations. The company is a for-profit corporation headquartered in Livermore, California, with three named subsidiaries: Adler Tank Rentals LLC, Vesta Housing Solutions LLC, and McGrath Rentcorp itself. McGrath Rentcorp operates under primary NAICS 321991 (Prefabricated Metal Building and Component Manufacturing) and related categories including 531120 (Lessors of Nonresidential Buildings except Miniwarehouses), with a federal footprint concentrated in modular and temporary building solutions across defense and civilian agencies.

McGrath Rentcorp's customer base spans 96 distinct federal agencies, though concentration is moderate. The Department of the Navy leads by award count (49 awards), followed by the Department of the Army Acquisition Support Center PEO Missiles and Space (27 awards) and the Department of Agriculture Forest Service R5-Pacific Southwest Region (19 awards, $521 thousand combined potential value). By potential value, the Department of the Interior Bureau of Reclamation dominates with 5 awards worth $4.9 million combined, trailed by the Department of the Air Force Materiel Command (6 awards, $1.9 million) and the Department of the Air Force Air National Guard (11 awards, $1.7 million). This divergence signals that McGrath Rentcorp wins numerous small task orders across Navy programs but anchors its dollar volume in larger facility leases for Interior and Air Force customers. Recent representative work includes a $375 thousand delivery order from U.S. Customs and Border Protection under the GSA Multiple Award Schedule for two prefabricated office buildings to the Border Patrol Spokane Sector (September 2026), a $254 thousand Army office trailer rental at Burbank, Washington running through September 2029, and a $253 thousand Department of Interior delivery order for two modular office buildings in Flagstaff, Arizona under MAS (August 2023, now in Option Year 3).

McGrath Rentcorp's primary vehicle is the GSA Multiple Award Schedule (MAS), which carries 73 task orders totaling $15.2 million in combined potential value—substantially larger than any other parent vehicle. The Advanced Technology Support Program IV carries 27 task orders under Northrop Grumman's prime; McGrath Rentcorp subcontracts on that program providing prefabricated metal building and component manufacturing support. Two Navy indefinite delivery contracts, N0022886L3168 and N6247021D0007, carry 3 to 4 task orders each. Activity has grown steadily from 15 awards in 2022 to 31 in 2025, with 4 awards recorded through September 2026. The recompete cliff is light: only 8 awards (combined potential value $672 thousand) reach ultimate completion within the next twenty-four months, indicating limited near-term renewal pressure on the prime footprint.

In its subcontractor role, McGrath Rentcorp supplies modular trailers and temporary facilities to Northrop Grumman Systems Corporation (Advanced Technology Support Program microelectronics work, multiple 2025 sub-awards), Bechtel National Inc. (NASA Space Launch System Mobile Launcher 2 construction, 2023–2025), Ch2M Hill Inc. (program management and community relations support for facilities, 2025), Hanford Tank Waste Operations & Closure LLC (integrated tank disposition contract modular trailers, July 2025), and HII Mission Technologies Corp (JNEEO temporary facility rental, April 2026). The sub footprint accounts for 45 awards (11% of total) and reflects McGrath Rentcorp's role as a specialized facilities supplier embedded in larger government construction and engineering programs.

McGrath Rentcorp's capability portfolio centers on modular office trailers (ranging from 20×8 portable containers to 48×60 buildings), temporary facilities for construction sites and wildfire operations, classroom modules, custom bunkhouses, restroom units, and generator support. The company manufactures both single- and double-wide modular units through its Vesta Housing Solutions subsidiary and provides leasing arrangements ranging from month-to-month to multi-year options, often with furniture packages and utilities included. Recent work spans military infrastructure (F-35 program temporary offices at Truax Field, Madison; Building 650 temporary facilities at Moffett Federal Airfield; Army construction office trailers), civilian agencies (National Park Service visitor center modules, Forest Service helibase offices, Interior construction support), and emergency response (wildfire operations in California and Georgia, COVID-19 pandemic facility support through Indian Health Service). The company competes on both small-business set-asides under NAICS 321991 and unrestricted full-and-open vehicles; source material indicates McGrath Rentcorp is classified as a large business overall but qualifies as small under NAICS 321991 on certain Army awards.

Combined potential value across all 396 awards is $34.3 million, with $29.3 million obligated (85% execution rate), indicating a mature, cash-generating prime footprint. Award velocity has accelerated in recent years—from 15 in 2022 to 31 in 2025—and category concentration remains strong: 107 awards fall under NAICS Lessors of Nonresidential Buildings, 31 under Prefabricated Metal Building Manufacturing, and 31 under Engineering Services, with PSC codes dominated by Lease or Rental of Equipment categories (61 awards in Prefabricated Structures and Scaffolding, 54 in Prefabricated and Portable Buildings). McGrath Rentcorp's position is that of a dominant, full-and-open competitor in federal modular and temporary facilities, with deep Navy and Army customer relationships, strong sub relationships with major defense primes, and low recompete risk in the near term.