Percona

Percona is an American company based in Durham, North Carolina and the developer of a number of open source software projects for MySQL, MariaDB, PostgreSQL, MongoDB and RocksDB users. The company’s revenue of around $25 million a year is derived from support, consultancy and managed services of database systems.

The company was founded in 2006 by Peter Zaitsev and Vadim Tkachenko.

Open source software
Percona maintains a GitHub repository for their open source software, which can also be downloaded from the Percona website. MySQL database software: MongoDB database software: PostgreSQL database distribution: Database Management Tools
 * Percona Server for MySQL
 * Percona XtraDB Cluster
 * Percona XtraBackup
 * Percona Operator for MySQL based on Percona XtraDB Cluster
 * Percona Server for MongoDB
 * Percona Operator for MongoDB
 * Percona Backup for MongoDB
 * Percona Distribution for PostgreSQL
 * Percona Operator for PostgreSQL
 * Percona Monitoring and Management
 * Percona Toolkit

Other information
The company’s founders, Peter Zaitsev and Vadim Tkachenko co-authored with Baron Schwartz the book High Performance MySQL (3rd edition), published by O’Reilly.