Parkyeri, Istanbul, Turkey
Parkyeri is a software development company from Turkey. We develop our products using free software.
All our servers run Debian GNU/Linux since 2001. Building large scale projects, we heavily use PostgreSQL and MySQL. Software we depend on for our team-based work style (Subversion, GNU Enterprise, XMPP) run on Debian servers as well.
We chose Debian over other alternatives; because of its reliability and ease of maintenance.