Our organization needs to use the various components of CS6 Creative Cloud offline.
Can you elaborate on what you need to use offline and perhaps why? There may be other solutions.
My understanding is that CS6 Creative Cloud does not work well without an internet connection. Is this true, and if so what are my options, given that our small 501 c 3 is on a very tight budget? Is there a subscription for a version that works offline?
Subscription versions come in two flavours: 30 day deals (paid month-by-month - cancel at any time) or 12 month commitment (still paid monthly but have to subscribe for 12 months)
The software only needs an internet connection to check your membership is current. When it checks, depends on your subscription.
30 day deals need an internet connection at least every 30 days. 12 month deals need an internet connection at least every 99 days.
Other than that, an internet connection is only required for downloading upgrades and updates - but those are optional.
If you do not have an internet connection and your computers will remain offline at all times then the subscription option is probably not for you. You'd be better off buying the perpetually licensed version of CS6, even though it's out of date and no longer being developed.