Sumo Logic is a cloud-native platform offering log management, monitoring, and Cloud SIEM tools for real-time insights and security operations.

Sematext provides full-stack observability tools for DevOps, offering log monitoring, infrastructure monitoring, and distributed tracing with transparent pricing.

Icinga is an open-source infrastructure monitoring tool for complex IT environments, offering automation, analytics, and enterprise-grade support.

Zenoss is a full-stack SaaS-based monitoring and AIOps platform for eliminating IT disruptions across hybrid and multicloud environments.

SignalFx (now part of Splunk) provides real-time observability, APM, and infrastructure monitoring for cloud-native environments like microservices and Kubernetes.

Datadog is an integrated platform for cloud monitoring, observability, and security, used by DevOps, IT operations, and security teams.

Prometheus Operator is the best tool for Kubernetes monitoring and is used by DevOps teams worldwide.