Zabbix - Track, record, alert and visualize performance and availability of IT resources
Okta - Enterprise-grade identity management for all your apps, users & devices
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
OneLogin - On-demand SSO, directory integration, user provisioning and more
Prometheus - An open-source systems monitoring and alerting toolkit.
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.