R4Risk is an Australian risk engineering and process safety consultancy providing specialist services to organisations operating in high-hazard industries. Services include risk assessment, HAZOP studies and facilitation, SIL assessment, quantitative risk assessment (QRA), LOPA, Bowtie risk assessment, fire risk assessment, hazardous area classification, hazard identification and process safety training. R4Risk combines specialist engineering expertise with practical risk management solutions to help organisations identify hazards, manage operational risk and improve process safety. dangerous goods melbourne