Disclosed are various examples for single-sign on by way of managed mobile devices using Kerberos. For example, a certificate is received from a client device. In response, a Kerberos ticket-granting ticket is generated and sent to the client device. A request for a service ticket is later received from the client device. The request for the service ticket can include the ticket-granting ticket. The service ticket is then generated and sent to the client device. Subsequently, the service ticket is received from the client device and a security assertion markup language (SAML) response is sent to the client device in reply. The SAML response can provide authentication credentials for a service provider associated with the service ticket.