Cedeo is founded in 1980 and is an initiative of HR-managers from the largest firms and associations in the Netherlands, supported by the Ministry of Economic Affairs. Immediate cause for the foundation was the absence of insight into the quality of the offer of company trainings. The offer contains of over tens of thousands company trainings, offered by more than 8500 organizations. Based on customer satisfaction surveys executed under purchasers, Cedeo meets the need for inventory taking and underwrites the quality for purchasers of training and development as well as for other HR-services.

Since 1997 the Cedeo methodology is also applied for the certification of suppliers of assessments, outplacement and employment agencies, coaching, and other HR-services. In the meantime Cedeo has become the main knowledge centre for HR-trends, research methodology, auditing, and quality improvement in The Netherlands. Simultaneously, the Cedeo-approval has developed into the main Quality Mark for the entire Dutch HR-sector.