Altova XMLSpy - The XMLSpy XML Editor is a powerful tool for editing XML and related technologies. It is the only XML Editor with patented SmartFix validation, enterprise-grade editors, converters, debuggers, and code generators.
Jason - Infinitely hackable mobile client
Oxygen XML Editor - Oxygen XML Editor provides a comprehensive suite of XML authoring and development tools.
Kamon.io - Kamon makes an instrumentation library and Application Performance Monitoring tool that helps developers find and fix performance issues in microservices. Works best for Scala (Akka, Play, Lagom) and Java.
Liquid Studio - XML Tools Provider: XML Studio - Graphical XML Schema Editor.
WorkForce Software - WorkForce Software provides workforce management solutions for organizations with complex policies and compliance concerns.