In our 37-criterion evaluation of providers of identity-as-a-service (IDaaS) for enterprise, we identified the 10 most significant ones — Google, IBM, Idaptive, Microsoft, Okta, OneLogin, OpenText, Ping Identity, Secret Double Octopus, and Simeio Solutions — and researched, analyzed, and scored them. This report shows how each provider measures up and helps security and risk (S&R) professionals select the right one for their needs.