MariaDB Ab is a company that develops, supports, and provides services for the MariaDB database management system, which is an open-source relational database. The company was founded by the original developers of MySQL and offers software that is designed to be a drop-in replacement for MySQL. MariaDB Ab focuses on ensuring scalability, reliability, and security in its products, making them suitable for both small and large-scale data management tasks. The company delivers enterprise-level support, professional services, and training for MariaDB users worldwide.