In addition to the listed providers we support any authentication system that works with SAML.
While the specifics/names may vary, the information we need from you to setup the SSO include:
1) IDP SSO URL
2) IDP provider Issuer ID (sometimes calls entityID)
3) X.509 cert for the service
Frequently those can be found in an XML export of the SAML parameters.
Send these fields to email@example.com along with any email domains you wish to authenticate with and we can get you setup.