CiviCRM

open source CRM built for nonprofits

Overview
Company	CiviCRM
URL	civicrm.org
Pricing	free— Software is free; self-host on existing infra, or managed CiviCRM hosting from roughly $10-100/mo depending on tier
License	open
Hosting	hybrid

Open-source CRM purpose-built for nonprofits and advocacy groups -- donor tracking, campaign management, event registration, and membership -- rather than a generic sales CRM repurposed for fundraising. Integrates as a plugin into WordPress, Drupal, or Joomla.

Usage Notes

Real cost is setup time, not licensing: expect to need PHP/MySQL/CMS admin skills in-house, or budget for a CiviCRM consultant. Good fit for orgs with technical volunteers willing to invest setup time for long-term savings over paid nonprofit CRMs (Salesforce Nonprofit Cloud, NeonCRM, Bloomerang, etc.).