Over the last two years, the Manufacturing Technology Centre (MTC) developed a readiness scale for modelling and simulation, focused on manufacturing applications and supported by an assessment tool, both of which are known today as SimReady. SimReady is partly a response to the MTC’s requirements to communicate maturity of data, methods and outcomes to industry, while also being a tool to transmit results from its predecessor SimBest. SimBest was an Innovate UK project run by KTN, NAFEMS and ALSTOM on the state of the art and future needs in industry best practices in engineering simulation. SimReady’s aspirations are to be able to assess the readiness level of modelling and simulation service and software capabilities to support their faster maturation and adoption within the manufacturing industry culture. The readiness level of modelling and simulation is analogous to the technology readiness level that has been used in industry for years to assess the readiness level of a specific technology. The SimReady tool can be applied to a number of modelling and simulation capabilities used today to support design and decision making processes in manufacturing. The information within the assessment can then be referred to in order to establish the current usefulness of simulation methods to reduce the risk associated with manufacturing operations.