A system for improving worker's compensation programs. Employee presence is detected by using proximity sensors at different places in the workplace. For example, where a company has different workshops, offices, rooms, or other areas, detection of a worker's presence in one or more of the areas allows more accurate information to be used to calculate liabilities such as risk of injury. Data about a worker's presence, duration of presence, repeated presence, or other characteristics of a worker in an area are sensed and logged by a digital system. The system can store and process the data locally, or the data (or a derivative of the data) can be transferred to other entities for storage, processing, analysis or other purposes. For example, the presence data can be sent to insurance providers for calculation of accurate premiums, risk, payouts, etc.