Book excerpt: More companies are outsourcing the functions of a project management office (PMO) in order to improve organizational performance. This paper covers the different PMO outsourcing models (supportive, governance, and directive), and explains the risks involved with outsourcing PMO functions as well as the benefits of doing it right. Relying on both a global quantitative and qualitative approach, the paper describes how outsourcing PMO functions can help your organization operate more efficiently than your competitors and provide your customers with more value.