United Drug plc, Ireland
United Drug is a leading provider of services to pharmaceutical retailers and manufacturers. It is the largest pharmaceutical wholesaler on the island of Ireland. It is also the market leader in contract distribution outsourcing (pre-wholesaling) in Ireland and has achieved No. 1 position in the UK through its joint venture with Alliance UniChem - UDG.
We currently use Debian on two servers, providing webmail, DNS, network monitoring, fax services, numerous internal web applications (CRM, Helpdesk, etc.) and other core network services. We are planning on more Debian installations in the future as we migrate services from WinNT to GNU/Linux. We chose Debian because of the ease of maintenance (nothing beats apt-get!), and the biggest reason of all, stability.