Sage CRM - Sage CRM offers a customer relationship management solution that gives you the ability to connect with and understand your customers
Onesheet CRM - The Simple CRM for Google Sheets
monday CRM - monday sales CRM is a customizable customer relationship management software for every business with support for unlimited leads and accounts and prepaid plans.
Followup.cc - FollowUp for email is a lightweight productivity suite that keeps your conversations and tasks from slipping through the cracks. Set perfectly timed reminders that arrive at the top of your inbox, right when you need them.
Composity - Composity is software solution for more efficient business! CRM, Inventory, POS, Invoicing, Financials and Accounting, Sales and Purchase modules, Document management, Website and eCommerce
Freshsales CRM - A full-fledged CRM for high-velocity sales teams.