SAASPASS as an Identity Provider supports the secure FIDO U2F standard and Yubico's YubiKey to allow access to all the company applications through single sign on and to SAML based applications. These include allowing access to multiple services securely and even supports shared services and accounts with the added security of the FIDO U2F token.
You can purchase FIDO U2F YubiKeys from Yubico's website.