Rock RMS - Rock RMS is a community supported open-source Church Management System that provides innovative features to churches of all sizes.
Planning Center - Find the information you need to follow up with your congregation and gain insight into your church members, all in one place.
eCatholic - eCatholic provides a total content management system that helps Catholic parishes, ministries, & dioceses create websites & website design.
Flocknote - Flocknote helps super duper churches with their members.
ChurchInsight - ChurchInsight is a church website content management system (cms). It allows churches to have great church websites and the best church website designs.
Elexio - Elexio is a church management software, database and website CMS.