Syncro Soft
Syncro Soft is a privately held software company founded in 1998 with a large area of expertise in XML technologies: XML Schema, Relax NG, Schematron, XSLT, XPath and XQuery. The main product Oxygen XML Editor provides the best coverage of the today XML technologies; it complies with the established standards released by W3C and other organizations and enhances developer productivity through an intuitive and innovative XML IDE. Syncro Soft is a member of the W3C. Another product developed by Syncro Soft is Syncro SVN Client (a Subversion client).
SAPIEN Technologies
SAPIEN Technologies makes Windows administrative tasks simpler. With more than 20 years of experience, best-in-class software applications, authoritative books, supportive communities, and real-world training SAPIEN offers everything you need to learn new technologies, advance your skills in existing technologies, and work more effectively and more efficiently.
Crystal Universe Software
Crystal Universe Software is dedicated to providing software developers with the tools they need to integrate EDI (Electronic Data Interchange) services into their applications. They are a licensed X12 Partner and their software is used by the largest health care and Fortune 100/500 companies all around the world.
xml-buddy.com
Clemens Uhlenhut trading as xml-buddy.com was established in 2010 to develop and market software for XML and JSON. Their tools are being constantly improved based on customer feedback and in-house implementations. They use mature, open-source libraries to keep their tools compliant to XML and JSON standards and compatible with existing workflows.