LiveCode Platform - It is Both Under the GPL and it is also Proprietary if using the GPL version the software you make...
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.
ESM Tools - ESM Tools is a powerful and widely known software development platform that comes with a centralized model infrastructure, providing the common frame for compiling, running, downloading, and organizing models (ones or multiple).
TeamDesk - Online Database Software. TeamDesk is a web-based database aimed to facilitate working with data, organize and store information you are using in your routine work, create an easily accessible data source for your team.
Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Amazon RDS - Easy to manage relational databases optimized for total cost of ownership.