The statistics on accidents related to industrial risks are alarming. The consequences of such incidents can be very harmful to a business, its goods, employees, reputation, environment and neighbouring population. To reduce these risks, a company should have an effective risk management policy, clearly defined and correctly implemented in a global approach for continuous improvement. In this paper, we will propose a maturity model for industrial risk management validated by application on fifteen cases studies. This tool will allow managers to evaluate their level of control over industrial risks, identify their weaknesses, and take the adequate decisions that will permit their organizations to be highly reliable.