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.
GalaBid - GalaBid designs an auction in minutes that guests can access from a smartphone, computer, or tablet.
Perfect Channel Auction - Auction
bidlogix - Bidlogix provides real time solution software for online auctions, webcast auctions and asset sales with features like timed aucitons, reports for sellers, and more.
Charity Auctions Today - Charity Auctions Today provides online and mobile auctions from home or work to raise for schools and Nonprofits.
Webid - WeBid is an open-source script to get an auction site up and away.