Zephyr for JIRA is available as an on-premise and soon to be as a SaaS solution.
Zephyr works with mid-sized to large enterprises.
Zephyr for JIRA is a QA Testing software solution that serves as an add-on application which augments JIRA 5 and 6, providing cost-effective, highly sophisticated test management capabilities right inside your JIRA. Together, Zephyr for JIRA and JIRA enable developers, testers and the entire project team to be better prepared at every stage of the software lifecycle to plan, build, test and launch great software.
Zephyr was founded in 2007 to create a rich, easy-to-use, full featured test management system. They are headquartered in Newark, CA.