Abstract: This invention provides a new method whereby high hazard employers, that is, those employers with a high rate of work-related injuries and illnesses, can be individually identified and ranked based on their work hazardousness within a specified geographical area. The invention involves the processes of creating a firm's average weekly wage, a firm's employment, a firm's frequency of injuries and illnesses, a firm's severity of injuries and illnesses, a firm's resource efficiency factor, a firm's preventable nature factor, and a firm's hazard rating values. The processes result in a ranked listing of the most hazardous employers.