InStream CRM - Business relationship management platform - CRM alternative
Evercontact - Your contacts always up to date and automatically with Evercontact.
Gmail CoPilot by cloudHQ - Easy CRM: View all past conversations with an email contact
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
Crmble - Easy peasy crm for Trello
Bigin by Zoho CRM - Pipeline-centric CRM built and priced for small businesses