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).
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.
Qoppa Software
Qoppa Software was founded in 2002 in Atlanta and specializes in the development of high-end libraries and applications to work with PDF documents. It provides solutions to companies all over the world ranging from small businesses to Fortune 500 companies. Being a small, highly focused company allows it to remain flexible to work with customers individually to deliver a solution that fits their unique needs in terms of licensing, implementation and deployment. Additionally, Qoppa Software prides itself in offering high-level, responsive technical support at an expert level, providing access to development staff when necessary.