MySQL - The world's most popular open source database
Steward Database - Steward is a personal database for organizing everything. It's easy to use.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
Philasmicos Contacts 2 - Philasmicos Contacts is a professional business relationships management system for macOS X.
Microsoft SQL - Microsoft SQL is a best in class relational database management software that facilitates the database server to provide you a primary function to store and retrieve data.
iDatabase for Mac - The intuitive personal database manager.