Office Timesheets - Professional Services Automation

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.

HarmonyPSA - HarmonyPSA - Professional Services Automation (PSA) for IT Businesses

LiveCode Platform - It is Both Under the GPL and it is also Proprietary if using the GPL version the software you make...

Timewatch - Timewatch offers time tracking, expense management, resource scheduling and professional services automation solutions.

Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.