Best Open Source CRM for Agencies 2026

Agencies managing multiple clients need a flexible, customisable CRM. These open-source tools support multi-client pipelines without per-seat pricing.

๐Ÿ‘ค For agencies ยท 5-100 people
Top tools ยท Ranked by BizOps Score
#1 82
Twenty
Modern open-source CRM โ€” clean Salesforce and HubSpot alternative.
Free to self-host โ˜… 16,000
#2 74
EspoCRM
Lightweight, customisable CRM for SMEs โ€” HubSpot alternative.
Free to self-host โ˜… 1,600

How we rank: BizOps Score is a composite of 9 GitHub signals โ€” stars, fork velocity, commit recency, issue response time, CI status, contributor count, PR merge rate, test coverage, and release cadence. Updated daily. Read full methodology โ†’

Find your perfect stack
Grade my current stack โ†’ Calculate savings โ†’ All CRM tools โ†’