Ewald Geschwinde is one of the founding partners of Cybertec Geschwinde & Schönig, an Austrian company that provides commercial PostgreSQL support, training, tuning, and remote administration for international clients. Geschwinde has used PostgreSQL extensively to develop high-end commercial database applications, and they recently developed a PostgreSQL "Tuning Pack" that is being released in accordance with the GPL for download free of charge from the Internet.