The U.S. Department of Energy’s Office of Environmental Management awarded the Portsmouth Infrastructure Support Services contract to AIS Technical Services LLC, a small business from Tempe, Arizona, to perform infrastructure support services at the Portsmouth Site, including its gaseous diffusion plant.
Office of Environmental Management
October 30, 2026
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CINCINNATI — The U.S. Department of Energy’s Office of Environmental Management (EM) awarded the Portsmouth Infrastructure Support Services contract to AIS Technical Services LLC (ATS), a small business from Tempe, Arizona, to perform infrastructure support services at the Portsmouth Site, including its gaseous diffusion plant.
The services support EM as it safely and efficiently advances the Portsmouth Site’s cleanup mission that is protecting human health and the environment. ATS will provide a range of services, including surveillance, maintenance, repair and construction and replacement of facilities; custodial services; grounds maintenance, snow removal and pest control; roadway and parking lot maintenance; fleet management; real property management; records management and document control; safeguards and security; engineering; training services; mail services; telecommunications; environment, safety, health, and quality programs; and other support to EM.
Following a competitive procurement process, EM determined the ATS proposal provides the best value to the government considering key personnel, organization and management approach, past performance and price.
The contract has a potential period of performance of up to five years, consisting of a three-year base period, which will include a 60-day transition period and one two-year option period.
For more than 35 years, EM has successfully addressed the environmental legacy of nuclear weapons development and nuclear energy research that allowed America to win World War II and the Cold War and make the United States the global leader in nuclear energy and nuclear technologies. EM continues to deliver results that are protecting human health and the environment, supporting communities that are home to legacy nuclear sites, creating new economic opportunities, and ensuring the cleanup mission is completed safely and more efficiently.
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