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RiskSpectrum risk and reliability software

The complete solution for risk and reliability analysis.

RiskSpectrum is an advanced suite of software tools for modeling, quantifying and monitoring risk and reliability.


In nuclear, oil and gas and other safety-critical industries, risk and reliability analysis is vital for continued safe and efficient operation. RiskSpectrum is the most comprehensive, proven solution on the market, helping operators precisely calculate and manage operational risk.

What we offer

By defining intricate processes and making their workings explicit, RiskSpectrum rapidly produces exact, reliable and actionable answers. It gives a clear and consistent operational picture on which to base well-balanced, risk-informed decisions.

What are the benefits?

With RiskSpectrum, you can verify delivery specifications, gain approval for plant operations, estimate and control reliability – and so maximise operational safety and efficiency. Flagship module RiskSpectrum PSA is the nuclear industry standard, used by over 60% of commercial operators.

Our fault and event tree analysis employs robust and proven solution algorithms to rapidly produce precise, reliable models of the most complex systems and workflows. The RiskWatcher module adds live data to those models to monitor plant operational safety - maximising asset value and optimising maintenance scheduling.

RiskWatcher can assess the status of components, verifying current operations and any potential modifications. Is it safe to continue with some equipment out of service? A host of other tools like RSAT and FMEA help visualise, analyse, document, report on and compare models. HRA adds in the human failure component of reliability analysis too.

Why choose LR?

We have helped maintain safe and efficient operations in complex safety-critical industries like nuclear, chemical and oil and gas for over 60 years. We’ve been in nuclear since Calder Hall – the UK’s first plant – and have worked on over 1,000 projects. With our extensive safety, licensing and regulatory expertise, we support facility owners, operators, vendors and national regulators worldwide.

What next? Contact us for more information.

Accelerate the generation and updating of risk models.

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RiskSpectrum ModelBuilder

RiskSpectrum ModelBuilder supports safety-critical industries by automating and standardising risk modelling processes across the organisation.

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