SuiteCRM — #5 Alternative to Salesforce / HubSpot
Enterprise-scale AGPL-3.0 open-source CRM forked from SugarCRM for large sales orgs
Provides quotes, contracts, products, multi-currency pipelines, and role-level security suites with zero per-seat licensing.
License: AGPL-3.0 · Pricing: Free & Open Source · Compare all Salesforce / HubSpot alternatives · Official Website