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!
Microsoft Office Access - Access is now much more than a way to create desktop databases. It’s an easy-to-use tool for quickly creating browser-based database applications.
VOGSY - Professional service automation tool built on Google G Suite
LiveCode Platform - It is Both Under the GPL and it is also Proprietary if using the GPL version the software you make...
Office Timesheets - Professional Services Automation
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.