Cloze - Smarter Relationship Management
NetHunt CRM - Turn Gmail into a smart CRM
Propeller CRM - Small business CRM with deep Gmail integration
Streak - Manage customers inside Gmail
Nureply - Email marketing software made for cold email marketing professionals. Using advanced AI to generate email personalization in seconds
SuiteFlow - SuiteFlow is a product to customer management solution offering a host of tools to manage inventory, contacts, invoices etc.