Raygun - Raygun gives developers meaningful insights into problems affecting their applications. Discover issues - Understand the problem - Fix things faster.
ManageEngine EventLog Analyzer - EventLog Analyzer is an IT compliance and log management software for SIEM.
Kafka - Apache Kafka is publish-subscribe messaging rethought as a distributed commit log.
Sumo Logic - Sumo Logic is a secure, purpose-built cloud-based machine data analytics service that leverages big data for real-time IT insights
Snare - Snare is well known historically as a leader in the event log space.
Octopussy.pm - Octopussy, Log Management Solution