More and more projects are lead by external project managers. Freelancer recruit-ing websites are booming. The idea to use external project managers is not new. Companies in the U.S.A. use external project manager since the 1990s. The reasons why companies hire external project managers are manifold: projects are getting more complex everyday; internal project managers are working on the limit; the skills and experience for projects are not always available in the company itself; an essential project is endangered and the company does not have the nec-essary expertise to stabilize it. On which basis do companies hire external project managers? Most companies use external project managers that have a good reputation or already worked for the company. The most important reason for hiring is word of mouth propaganda. Which kinds of success factors are important for external project managers? The most important success factor for external project managers is trust by the employer and the project team in the skills of the project manager What are the advantages / disadvantages of external project managers? The ad-vantages of external project managers are the limited time they spend in the com-pany They are only paid to complete a project. External project managers have a lot of experiences in different companies. They can use these experiences as best practice in the project. Also for the first 26 months external project managers are cheaper than internal project managers are.