CENTRAL PLATEAU CLEANUP COMPANY, LLC

Executive Summary

Central Plateau Cleanup Company, LLC (CPCC) is a private joint venture that serves as the U.S. Department of Energy's prime contractor for environmental cleanup of the Central Plateau at the Hanford Site in Washington state. Led by Amentum Holdings, CPCC manages one of the world's largest nuclear remediation projects, focusing on decommissioning, waste treatment, and site restoration.

Government Reliance & Contracts

CPCC is almost entirely reliant on federal funding, with the DOE as its sole client. The company holds the Central Plateau Cleanup Contract (CPCC) at Hanford, a cost-plus-award-fee contract with a potential ceiling of $10 billion over a 10-year period. Recent task orders under this contract demonstrate sustained DOE investment: a $1.0 billion task order announced August 2026, a $946 million task order in July 2026, and multiple $53.1 million task orders. These awards cover services including demolition of contaminated facilities, treatment and disposal of radioactive and hazardous waste, groundwater remediation, and infrastructure stabilization. The DOE's Office of Environmental Management is the primary agency served.

Moats & Key Technology

CPCC's moat is built on its specialized nuclear remediation expertise, regulatory compliance capabilities, and long-standing relationship with the DOE at one of the most complex nuclear cleanup sites in the U.S. The company possesses unique capabilities in remote handling, radiological controls, and large-scale project management in a highly regulated environment. While specific patents are not publicly disclosed, the technical know-how and safety record required to operate at Hanford create high barriers to entry. The joint venture structure also combines the resources of leading firms (Amentum and Atkins) to address the site's challenging waste inventory, including 56 million gallons of radioactive tank waste and numerous contaminated facilities.

Capital & Shadow Backers

As a private LLC, CPCC does not have public shareholders or SEC filings. The company is a joint venture led by Amentum Holdings (NYSE: AMTM), a global engineering and technology solutions provider, with minority partner Atkins (a member of the SNC-Lavalin Group). The venture is funded primarily through its DOE contract revenue, with parent companies providing initial capital and infrastructure. No Form D filings or external private investments are indicated for CPCC; the business operates as a consolidated subsidiary of its parent entities for financial reporting purposes.

Recent Catalysts

CPCC has experienced a series of positive contract actions, reinforcing its position at Hanford. In August 2026, the DOE awarded a $1.0 billion task order, adding to a $946 million award in July 2026 and smaller $53.1 million task orders in mid-2026. These awards reflect the DOE's ongoing commitment to Hanford cleanup and provide multi-year revenue visibility for the joint venture. While no direct legislative catalysts were identified, the contract extensions align with federal environmental management priorities and stable funding appropriations. The contracts also indirectly benefit publicly traded Amentum Holdings, which reports CPCC's results within its environmental services segment, contributing to its backlog and revenue growth.