SOUTHERN OHIO CLEANUP COMPANY LLC: $265M Department of Energy Contract

Southern Ohio Cleanup Company LLC, a wholly owned subsidiary of Amentum Holdings Inc. ($AMTM), received a $265M task order from the Department of Energy for decontamination and decommissioning at the Portsmouth site. The contract runs from September 2025 through September 2031, providing multi-year visibility. Amentum is a pure-play environmental cleanup and nuclear services contractor for the U.S. government. This contract is a renewal and expansion of existing work, not a net new win, but it solidifies the company's dominant position at DOE's environmental sites.

Amentum's most recent fiscal year (ending September 2023) reported revenue of $7.9B, but net income was negative -$314M. The $44M annualized revenue contribution is modest at ~0.6% of total revenue, but environmental remediation work typically carries higher margins than larger construction/integration contracts. For a company currently unprofitable, every incremental high-margin dollar improves the path to profitability. The contract structure as a task order under an existing IDIQ means it leverages existing infrastructure, likely supporting margin improvement.

No related bills in the HillSignal database directly fund or authorize this DOE cleanup work. The listed bills are dominated by agricultural spending and a JROTC defense bill; none share the objective of nuclear decommissioning. This contract is funded through DOE's Environmental Management appropriation, which is part of annual energy and water development appropriations, not a specific authorization bill.

Subcontractors and supply chain beneficiaries include companies providing heavy decommissioning equipment, hazardous waste disposal, and radiological protection services. Key likely subcontractors include Tetra Tech ($TTEK, ~$300M environmental services revenue from government), Jacobs Solutions ($J, former competitor in D&D but now a clean-tech/solutions firm), and smaller specialized firms like Perma-Fix Environmental Services ($PESI).

Historically, large multi-year DOE cleanup contracts provide stable, recurring revenue streams. Amentum's share price has historically responded positively to task order announcements, though the effect is muted for follow-on awards. The key catalyst for $AMTM remains progress toward profitability, which this contract supports incrementally.