Squid Support and Development
Xenion was formed by one of the Squid Developers, Adrian Chadd, and its goals include providing professional network and network application design, support and infrastructure.
Xenion provides Support Services and works on a number of Squid projects which benefit the community.
In addition, Xenion is now collating notes about Squid and HTTP proxy/cache related deployments for others to benefit from. These can be found in the Squid documentation area.