Red Hat has done a lot of work with CDOT, lately specializing in Fedora for ARM processors. Pidora, the Fedora Linux Remix specifically targeted to the Rasberry Pi, was primarily developed at CDOT.
Another company that we have been working with lately is Blindside Networks. They do a lot of work with CDOT on the BigBlueButton project, which is a web conferencing tool for online education.
NexJ is a Toronto-based software development firm that has worked with CDOT on various aspects of open health tools on the server side and integration of medical devices with smart phones.
We have recently started working on the edX platform, where developers around the globe are working to create a next-generation online learning platform.
I spend more time looking at the family trees of Linux distributions than I do looking at my own family tree. I find it interesting to see how distributions grow from their parent distribution, either acting as an extra layer of features which regularly re-bases itself or as a separate fork. New distributions usually tend to remain similar in most ways to their parent distro, using the same package manager and maintaining similar philosophies. When I look at the family trees of Linux distributions one project stands out more than others: PCLinuxOS.
Speed or torque? Linux desktop vs. server distros
So allow me to clarify: I believe the time has come when a major, dedicated, server-only Linux distribution is needed. This distribution does not maintain any desktop packages or dependencies -- and is not a distro that merely offers a different default package set for desktop and server use cases.