For more than 30 years, our diverse teams of industry-leading nuclear engineers, fire protection experts, and regulatory affairs and safety assessment consultants have been enhancing the safety and operational performance of complex facilities, such as nuclear power plants, chemical process facilities and hazardous material storage facilities. As the principal developers of Probabilistic Safety Assessment (PSA) methods and technology, we have established and maintained a dominant role in the use of risk and reliability techniques to ensure regulatory compliance while minimizing risks, assessing new technologies and reducing costs. Leveraging our extensive background in regulatory and licensing projects, we support all phases of small modular (SMR) and advanced reactor design development. We also support the long-term operation of existing nuclear power plants, using risk models to inform aging management programs and life extension strategies.

New + Advanced Reactors

Our nuclear and power team supports the New Large Reactor, Small Modular Reactor (SMR) and Advanced Reactor industry by supporting several aspects of the design including the Design Certification Application and Certification process.

Life Extension / Long-Term Operation

We are a world-class team of experts with extensive experience in implementing the regulatory framework for the life extension of nuclear power plants over the past several decades. Our team of engineers performs risk-informed aging mechanism evaluations on mechanical, electrical and I&C, and civil-structural systems to support the long-term operation of the plants.


A QRA is critical to understanding existing hazards, established mitigation programs and how exposed an engineering process is to these hazards. This knowledge from these models informs risk management decisions to optimize plant performance and safety.


Our PRA methods cover the full spectrum of modes, hazards and sources – including external hazards – and can support nuclear and alternative power plants, transmission and distribution facilities as well as industrial and manufacturing operations. We are leading the industry with developing and using “living” PRAs to inform real-time processes. Our probability risk analysis uses fully-tested and proven PRA tools and techniques along with extensive libraries of historical operations and failure data to quantitatively derive the probability of occurrence of highly undesirable events or accidents to support sound decision-making.


To mitigate risk, our team can also inform electrical, mechanical, civil and fire protection engineering design. We leverage this expertise as well to present cost-effective modifications needed to meet PRA and QRA required outcomes.


Acceptability hinges on regulatory and code compliance. Our team of experts have an in-depth knowledge of applicable codes and regulations and can help with evaluations, equivalency calculations and variances, licenses and license transitions as well as assistance with the preparation for and third-party review of audits and assessments for fire protection and safe shutdown programs. We can also provide licensing services for safety analysis, design engineering, plant operations, human factors, technology evaluation and selection, and trade-off studies.