Grafana Labs

Grafana, we make Grafana (visualisation), Loki (for logs), Mimir (for metrics), Tempo (for traces), Pyroscope (for profiles), OnCall, Application Observability and a lot more. Most of our work is open source as AGPL or Apache2. Most work is Go, JavaScript, but there's also eBPF, C, Python, and Java in some areas.