Accredible - Accredible is the new digital credential standard for the online learning age.
Certificates by Graphy - Certificates by Graphy lets you share beautiful custom certificates to all your learners at once.
Sertifier - Best way to send smart certificates & open badges!
Certopus - Design & Deliver verifiable certificates
Openbadges.me - Digital Credential Management
Credly - Used to post and verify educational credentials