Flocknote - Flocknote helps super duper churches with their members.
EspoCRM - EspoCRM is open source CRM (Customer Relationship Management) software that allows you to see, enter and evaluate all your company relationships regardless of the type.
Rock RMS - Rock RMS is a community supported open-source Church Management System that provides innovative features to churches of all sizes.
CiviCRM - A Constituent relationship management for the Civic Sector
ChurchSuite - ChurchSuite is a cloud hosted, web-based church management system, ideal church database software for churches.
Less Annoying CRM - A simple customer relationship manager made just for small businesses. Manage contact info, track leads, and never miss a follow-up.