Xapian - Xapian is an open source probabilistic information retrieval library, released under the GNU...
Kindful - Nonprofit donor database + fundraising tools all in one
GiveSmart - GiveSmart offers mobile bidding and event management for charity fundraisers .
iATS Payments - Credit Card Payment Processing, International processing and Payment Security Services for Nonprofits from iATS Payments
Paperless - Developers and publishers of Mac, Win, and iOS productivity, home and office and writing software such as MacGourmet, Paperless, MacJournal and many more. Based in MN.
NCrypted Fundraiser - Check how exactly Fundraiser Enterprise edition works and which features are offered with the product.