Classy - Expressive, flexible, and powerful stylesheets for native iOS apps
CiviCRM - A Constituent relationship management for the Civic Sector
Agilon One - Agilon One is a Nonprofit CRM software solution that connects and gathers information on constituents.
Odoo CRM - Open Source CRM
Little Green Light - Illuminating Data. Advancing Nonprofits.
Less Annoying CRM - A simple customer relationship manager made just for small businesses. Manage contact info, track leads, and never miss a follow-up.