This e-fact summarizes the report that presents the findings of a literature review on the motivating factors for employees to participate in workplace health promotion (WHP). This knowledge can be used to improve WHP programmes and, consequently, participation rates. The findings section of the report is divided into two key areas. The first outlines and describes some of the key findings from the literature concerning workers’ motivation to participate in WHP, and the second examines the role that diversity may play in workers’ participation and recruitment. WHP is the combined efforts of employers, workers and society to improve the health and wellbeing of people at work. Developing and sustaining a healthy work environment and workforce has clear benefits for companies and employees, but can also lead to an improvement in social and economic development at local, regional, national and European level.