We want to sell access "packets" to companies- let's say 50 users/licenses to access content on the cloud. But we don't want the overhead of needing to enter all of the data/users ourselves. Also, we must ensure that the registrations are "capped" for the companies.

As you can tell, we are not "coders" by nature here- and I would really like ANY guidance on how to do this (is it something best done by a utility or a plug in for a CMS, or is it custom coding?).

Thanks to any for your insights.

Without knowing too much about your service, my suggestion would be try to look for a web service that might solve this. Alternatively, you could write some code to do this type of thing but since you are not "coders" this might be outside your comfort zone. You could outsource it - use freelancer.com or scriptlancer.com to hire someone that might do it for a small fee. Not sure I've really answered your question, but hope these point you in the right direction.

Good recommendations esp. RE: seeking freelancers. Any web services that you are aware of that accomplish this?

Sorry - I am not personally aware of any web services that would this. I was just suggesting that such web services are likely to exist.