Trac is an open-source, cloud-based, project management and bug tracking solution written in the Python programming language. Trac provides a simple interface to Subversion and Git, a host of reporting tools and an integrated Wiki.
Trac allows users to track the progress of resolving bugs, issues and features requests with ticket numbers. These ticket numbers can be searched and filter by severity, project component, owner and version.
Trac provides additional features through plugins such as anti-spam, code documentation, file management, project time management, user feedback and discussions. It supports a number of databases, such as SQLite, MySQL, PostgreSQL and MS-SQL.
Max from Brickyard
Employees number: 11-50 employees
Trac served me well for many years
Open source, very easy to get started with, includes a wiki and subversion integration out of the box
New releases can take forever, plugins feel like a house of cards, there's nobody you can call when it falls apart, rolling your own plugin requires python, which I dislike