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!
UI Design System - Starter kit for Sketch to create awesome user interfaces.
VOGSY - Professional service automation tool built on Google G Suite
Design Systems Repo - A collection of design system examples and resources
Office Timesheets - Professional Services Automation
Symbol Design System - Advanced web-design system based on Sketch nested symbols.