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.
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.
Little Green Light - Illuminating Data. Advancing Nonprofits.
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.