nxlog - NXLog offers log management solutions for companies of all sizes.
Codezero - Collaborative Local Microservices Development
Splunk - Splunk's operational intelligence platform helps unearth intelligent insights from machine data.
LeadMD - LeadMD is the revenue performance consultancy that cuts through the BS by making your vision actionable and your outcomes measureable
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.
Sirius - An open-source clone of Siri from UMICH