SalesforceIQ - SalesforceIQ is one of the most popular and well featured customer relationship management platforms around.
Agile CRM - Agile CRM (Customer relationship management) features modern CRM with marketing automation, social suite & web analytics, allowing small businesses to sell and market like the Fortune 500.
Salesforce Sales Cloud - Cloud-based CRM & Sales Automation
Zoho CRM - Omnichannel CRM for Businesses of all sizes
Sidekick by Hubspot - Customer insight integrated with your email tools.
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!