https://www.gsdcouncil.org/certified-pmo-professional
PMO certification will impart hands-on knowledge of key tools and techniques to facilitate the success of project management. These tools help the PMOs manage the portfolio, track project performance, and facilitate communication among the stakeholders.
A PMO certification brings a credential along with key skills and knowledge to help an individual stand out in the work of project management. Want to boost project management capability? Align projects for business goals? Master risk and resource management? The PMO certification will give you the tools and know-how to make it happen.