Were you able to find the right 4 Providers within not-for-profit ? If you're also a provider of not-for-profit and you're not featured in the business directory yet, you can always Add an entry for free.
The results list for not-for-profit in Charlotte. You can find the best not-for-profit vendors and providers in Charlotte in the Charlotte Business Directory. Currently there are 4 companies registered in the Charlotte business directory under not-for-profit.