There are some paid support options available for Citadel if you ask around on the support forum, but at our place (we've got about 150 users on Citadel) we found that the free support from the community was so good that we ended up not needing it. Also they have a hosted (SaaS) option available, but again you have to ask around on the support forum to find it.
Yeah. I was absolutely sure that there was paid support somewhere (there always is for FOSS) so I was careful to add "on the site" and "doesn't appear to be." I knew I'd be proven wrong otherwise. Hehe. ;)
Thanks for the info.