GiveSmart - GiveSmart offers mobile bidding and event management for charity fundraisers .

Silent Auction Pro - Simple * Affordable * Powerful --- Silent Auction Pro is a multi-user, internet-based fundraising software system providing complete donor and auction management solution for charitable organizations.

E-Multitech Auction - E-Multitech Auction is a web and ecommerce solution that makes different kinds of auctions such as Ebay style auctions, price reveal actions, & penny auctions.

OneCause - Fundraising auction & event management software

Bidopia - Auction

SchoolAuction.net - SchoolAuction.net is a web-based software to help school auction teams plan, manage and run school fundraising auctions.