CiviCRM - A Constituent relationship management for the Civic Sector
Rock RMS - Rock RMS is a community supported open-source Church Management System that provides innovative features to churches of all sizes.
WORKetc CRM - All-in-one business management system. CRM + Social + Projects + Billing
ChurchSuite - ChurchSuite is a cloud hosted, web-based church management system, ideal church database software for churches.
Pipeliner CRM - Pipeliner CRM empowers small to medium-sized sales teams to close more deals and lower risk. Implementation and training are a breeze. Mac & Windows.
eCatholic - eCatholic provides a total content management system that helps Catholic parishes, ministries, & dioceses create websites & website design.