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.

Affinity - Relationship Intelligence, Reimagined

CiviCRM - A Constituent relationship management for the Civic Sector

Zapflow - Zapflow is a cloud-based tool for professional investors to manage their deal flows​.

Less Annoying CRM - A simple customer relationship manager made just for small businesses. Manage contact info, track leads, and never miss a follow-up.

Attio - Attio is a radically new type of CRM that is real-time, entirely customizable and intuitively collaborative. Using Attio, your team can create, build and deploy your CRM exactly as you want it.