RiskSpectrum™ is a proven suite of software tools that enables operators to precisely, rapidly and confidently calculate, visualise, monitor and manage risk, both projected and in real time, to ensure continued safe and efficient operations. From verifying delivery specifications and gaining approval for plant operations to monitoring plant operational safety, RiskSpectrum enables you to rapidly produce precise, reliable models of the most complex systems and workflows so you can make the right decisions at the right time.
Why RiskSpectrum
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60 years experience
Helping maintain safe and efficient operations in complex safety-critical industries.
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Licensed for use at 60% of the worlds nuclear plants
To secure continued safe operations, reduce downtime and achieve greater flexibility.
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Safety, licensing and regulatory expertise
Supporting facility owners, operators, vendors and national regulators worldwide.
Who we help.
Find out how we help our customers maintain safe and efficient operations with RiskSpectrum.

EDF Energy: Seeing the full risk picture at Sizewell B.
Integrated consultancy, advisory and software support for risk monitoring.
Explore RiskSpectrum
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RiskSpectrum PSA.
Blue-chip fault tree and linked event tree modelling and analysis.
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RiskSpectrum ModelBuilder.
Accelerate the generation and updating of risk models.
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RiskSpectrum HRA.
Standardise quantification and review of human error probabilities.
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RiskSpectrum RiskWatcher.
A tool for managing operational safety and to achieve greater flexibility in operations.
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R-DAT.
Bayesian data analysis package to develop and update system-specific reliability parameter estimates.
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RiskSpectrum SDP.
Support for the Significance Determination Process.
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News and insights
'The Best PSA Tool in the World Got Even Better!'
The RiskSpectrum PSA 1.5.0 release had set from the very beginning really ambitious goals. The implementation of long record IDs and conditional quantification being two of them.
How drawing digital insights from nuclear’s past can create a safer industry.
In the wake of the Fukushima nuclear disaster, many new nuclear programmes were delayed or repealed. Governments globally instigated broad-brush policy changes while also conducting substantial safety reviews and nuclear power plant modifications.
RiskSpectrum Virtual User Group: April 2022.
We discussed how risk monitors can justify maintenance online and extended completion times plus many other updates.
A new approach to risk and reliability analysis.
Join LR and EDF as we unveil details of an innovative approach to automate, accelerate and standardise risk and reliability modelling process.
Specialist training from leading experts

RiskSpectrum Training
Our experts offer professional training on RiskSpectrum PSA, ModelBuilder and RiskWatcher as well as customised training to fit your needs – held at your premises if requested.
Register your interest