- BuildScreen - a standalone Windows application to display TeamCity build statuses e.g. on a large screen.
- buildstatusnotifier - a way to see green/red page mirroring build status
- Cradiator - a standalone Windows application that displays a summary of project statuses.
- CI Monitor support - support for TeamCity in Big Visible Chart CI aggregator(from the comment)
- Google Chrome extension
- Growl Notifier
- Nabaztag Notifier
- Team piazza
- Tux droid
- Twitter (announce), on github
- VersionOne, download, sources
- Windows 7 and Vista sidebar gadget
- FogBugz - integration with FogBugz. announcement
- TFS issue tracker integration - integrate with TFS as issue tracker (announcement)
- Track - announcement, related issue. See also Trac plugin for TeamCity