Large amounts of the data gathered in organizations through business operations won’t have utility value unless they are used in a proper way. With growing amount of data, the issue of their storage, processing and analysis is becoming more complex. The proper data usage and analysis should provide guidance, solutions and the basis for predictions with the objective of improving and initiating future smart decisions based on the acquired results. Data mining is the tool which exactly enables discovering of emerging patterns and important business information. This work presents the example of Data Mining implementation in the field of workplace health, safety and welfare at HIP- Petrohemija, in Pančevo, as well as various approaches of data analysis and processing by various authors in this field.