Sertifier - Best way to send smart certificates & open badges!
Certopus - Design & Deliver verifiable certificates
Accredible - Accredible is the new digital credential standard for the online learning age.
Credly - Used to post and verify educational credentials
CertifyMe - Your trusted credential platform
SimpleCert - Simplecert certificate examples of certificates of attendance, certificates of completion, certificates of continued education, certificates of training, certificates of achievement, etc.