ERA's Safety Engineering services range from the support of all aspects of systems safety engineering including the three ISA (Independent Safety Audit, Assessment and Advice) activities to the provision of expert witnesses in litigation. The group is a Network Rail Accredited ISA.

The group produces safety cases, safety arguments and safety management plans as well as undertaking gap analyses, risk assessment, studies of safety culture and cost benefit analyses. It undertakes this work throughout the whole product lifecycle and, where appropriate, the supply chain.