DocGen - Static website generator
Zabbix - Track, record, alert and visualize performance and availability of IT resources
openSourceCM - Web-based legal document processing and contract management
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
LogicalDOC - A document management system such as LogicalDOC can help your organization better manage business processes and put order in the chaos of documents every day run your business.
Prometheus - An open-source systems monitoring and alerting toolkit.