Since 1984 PMI has been dedicated to developing and maintaining a rigorous, examination-based, professional certification program to advance the project management profession and to recognize the achievements of individuals in project management.

PMI's Project Management Professional (PMP®) certification is the world's most recognised professional credential for individuals associated with project management and at the end of 2003 there were 75,000 PMPs worldwide. PMI's Associate certification, the CAPM, is for those active in project management who have demonstrated fundamental project management knowledge and experience.

In 1999, PMI became the first organization in the world to have its Certification Program attain International Organisation for Standardisation (ISO) 9001 recognition.