Certifications ← Knowledge Base How do I add my certificate to my LinkedIn profile? How do I get a Professional Scrum certification? Where can I find a list of people who hold Scrum.org certifications? How is a PSM through Scrum.org different from a CSM through the Scrum Alliance? Does my Scrum.org certificate expire or require renewal? Do Scrum.org certifications have license numbers? I can't find my name on the list of certification holders.