Slack Jira Integration - Easily keep issues moving right from Slack
Timeneye - Time Tracking Software for Teams and Freelancers
Garage by Fueled - Just shake your phone to report bugs directly to Jira
Marvel for JIRA and Confluence - Embed designs & interactive prototypes into JIRA+Confluence
Agile Docs - Interact with Jira like a Google Doc
Hours - Boosting productivity through live, virtual co-working.