Provide secure identity management and single sign-on to any application, whether in the cloud, on-premises or on a mobile device for your employees, partners and customers with Okta.
Okta solutions include:
Partner or Customer SSO, Connecting to Distributor and Supplier Identities, MFA for Your Apps, Single Customer Profile, Mobile Device Lifecycle Automation, Cloud Apps on Mobile Devices, Employee System of Record, Enterprise Federation for Your Service, Access Apps Across Multiple Domains, HR-Driven IT Provisioning, Secure User Management, Employee SSO to Apps, MFA for Apps or VPN
Okta is free to start using and comes with great support. The pricing is fairly reasonable starting at $1/user/month.