Fluentd - Fluentd is a cross platform open source data collection solution originally developed at Treasure Data.
IBM App Connect - IBM App Connect is the all-in-one integration tool for connecting apps, integrating data, building APIs and acting on events
Splunk - Splunk's operational intelligence platform helps unearth intelligent insights from machine data.
Software AG webMethods - Software AG’s webMethods enables you to quickly integrate systems, partners, data, devices and SaaS applications
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.
Apache Camel - Apache Camel is a versatile open-source integration framework based on known enterprise integration patterns.