Instana
Application Performance Monitoring platform. Pål Erik Sjåtil founded it in 2015 in Germany. IBM acquired in 2020. Strong on automatic discovery of services + traces.
Differentiator: automatic instrumentation without code changes (agent-based). Support for Kubernetes, microservices, AWS Lambda. Competitors: Datadog (mainstream leader), New Relic, Dynatrace, AppDynamics (Cisco), Honeycomb (more dev-focused), Grafana stack (open source). Since the IBM acquisition integration with Watson AIOps. Less known outside the enterprise segment.