Foundation Directory Online is easy to use and navigate. I also like the fact that you can save searches and you don't have to start over with the same criteria. Review collected by and hosted on G2.com.

There is no downside, I do wish that when you find an organization and you meet their requirements, they will show you other companies that are similar. I would like for the similar companies list to be accessible enough to save as a group instead of going into each of them one by one. Review collected by and hosted on G2.com.