HubSpot CRM - Free CRM software for small businesses.

Evercontact - Your contacts always up to date and automatically with Evercontact.

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

CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.

Flowlu - Flowlu provides business management software, project management, agile project management and collaboration tools for teams of all sizes.

Bigin by Zoho CRM - Pipeline-centric CRM built and priced for small businesses