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.
Keap - Grow Sales. Save Time. Get Organized.
Bigin by Zoho CRM - Pipeline-centric CRM built and priced for small businesses