Nuclear Energy

Amentum delivers complex nuclear solutions across the nuclear lifecycle through our expansive technical experience and expertise to achieve mission critical objectives.

Amentum is at the heart of a nuclear power resurgence that is sweeping the world.  We are at the forefront of delivering complex major nuclear programs across the entire nuclear lifecycle — from research and development, design and engineering, operations, maintenance, decommissioning, and environmental remediation.

Our integrated program management, deep technical knowledge and innovation delivers excellence, reduces risks and empowers our clients to achieve their mission critical objectives with confidence and integrity. We uphold the highest standards of safety, security, and environmental responsibility, leveraging our expertise and collaborative spirit to advance cost-effective, reliable nuclear solutions that deliver sustainable growth to national economies and wider benefits to local communities.

New Build

Amentum is working with clients around the world on nuclear new build programs for gigawatt, small modular and advanced reactors, helping our clients to provide a secure, large-scale energy supply for the future.

Full Lifecycle Services

Amentum offers comprehensive expertise across the entire nuclear lifecycle, from initial design and development, through construction and commissioning, fuel (uranium) design and management, to operations, and decommissioning. Our integrated approach combines innovative engineering, and advanced technology to support nuclear programs at every stage, helping clients achieve their objectives while maintaining the highest standards of safety.

Advancing the Nuclear Resurgence

The Nuclear Resurgence offers solutions to growing global energy needs across all markets. Jim Blankenhorn notes, “This (nuclear resurgence) is going to be the lifechanging innovation in this century.” In this video Andy White and Jim Blankenhorn highlight the ways Amentum is at the forefront of the resurgence globally and is positioned as the leading global, technology enabled, solutions provider for the nuclear and environment industry.

Feature Projects


Sizewell C

Amentum is sole program and project management delivery partner for Sizewell C, a new nuclear power station that will strengthen the United Kingdom’s energy security.

Idaho Environmental Coalition

Amentum’s Idaho Cleanup Project team completed the demolition of the high bay roof and walls of the Submarine 1st Generation Westinghouse naval reactor prototype plant. The effort, overseen by the U.S. Department of Energy Office marks significant progress in reducing the footprint at the Naval Reactors Facility located on the Idaho National Laboratory Site.

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