Both SSO and Identity Management on cloud is a big topic.
We love WordPress and many of our WebApp or websites are done using WordPress as a backend, but currently Authentification with Microsoft AD FS was not supported. As we do more and more cloud migration to replace on premise software, classic authentification as LDAP or Active Directory, dont scale very well in cloud.
We decided to fill this gap and create an AD FS WordPress Authentification plugin. Currently this plugin is Alpha and replace built-in authentification, so be cautious. You must have a working AD FS Server, use SSL, add a trust for the wordpress site, publish SAM-AccountName and Email Adress, and the username must match between your Active Directory.
You may download it on share-my-files.com (our cloud file storage) at
Happy SSO! More information will follow when a official plugin release is done.