1839 - Birth of the company founder Antonín Petrof.
1857 - Antonín Petrof goes to Vienna to study grand piano making at the companies HEITZMAN, EHRBAR, SCHWEIGHOFER.
1864 - Hradec Králové – construction of the first concert grand.
1865 - Antonín Petrof transforms his father’s joinery workshop into a pianomaking workshop in the old town behind the Cathedral of the Holy Spirit.
1866 - Austro-Prussian battle at Hradec Králové – production is interrupted.
1874 - The company relocates to new premises outside the city in the direction of Brno; apart from grand pianos, the company also makes harmoniums.
1880 - A subsidiary in Temesvar in Hungary is opened.
1881 - The company starts keyboard production and the construction of piano actions.
1883 - Production of upright pianos is begun.
1895 - The company starts exporting instruments, and opens a warehouse and service centre in Vienna.
1899 - Antonín Petrof is appointed by the Emperor as piano-builder to the court of the Austro-Hungarian Empire, and Privy Councillor. Both titles later pass on to his sons.
1908 - The company is transformed into a limited liability company, with Marie Petrofová as confidential clerk. Apart from the founder, his sons Jan, Antonín, and from 1914 the youngest Vladimír (2nd generation, also work there.
1915 - Death of Antonín Petrof and his wife Marie. Throughout the war years, the company is managed by the youngest son Vladimír.
1924 - Production of electro-pneumatic pianos and later radio-acoustic pianos is begun. PETROF now exports also to Japan, China, Australia and South America.
1928 - PETROF together with the important American manufacturer STEINWAY opens a subsidiary in Wigmore Street, London. The company management enlarges the company administration with the 3rd Petrof generation: Dimitrij, Eduard and Eugene.
1934 - GRAND PRIX – PETROF instruments win the gold medal at the world EXPO in Brussels. The factory employs 400 people.
1948 - Nationalisation of the factory. The Petrofs’ property and rights are confiscated.
1954 - A development department for upright pianos and grand pianos is established.
1958 - The PETROF Mondial grand piano wins the gold medal at EXPO Brussels. Harmonium production is stopped.
1991 - Ing. Jan Petrof (4th generation) takes over after 43 years of totalitarianism– the privatisation process begins.
1994 - A new modern research centre is opened with its own high-volume anechoic measuring chamber, the largest of its kind in the Czech Republic.
1997 - Továrna na pianina, a. s. is established in Hradec Králové.
1998 - Privatisation of the company by PETROF, spol. s r. o. is completed.
1999 - 135th anniversary of the founding of the PETROF company.
2001 - PETROF, spol. s r. o. – the factory passes fully into the hands of the Petrof family; the 5th generation joins the company.
2003 - The magnetic accelerated action is patented (MMA).
2004 - 140th anniversary of the founding of the PETROF company – Mgr. Zuzana Ceralová Petrofová (5th generation) becomes president of the company – own production of upright and grand piano action is resumed.
2005 - Mgr. Zuzana Ceralová Petrofová is appointed president of the European Federation of Music Instrument Manufacturers – CAFIM.
2006 - Production series of 5 grand piano sizes, addition of the P 210 Pasat and PETROF VI concert pianos. On customer request, the instrument can be fitted with its own magnetically balanced keyboard.
2007 - PETROF instruments are marked with the new seal of EUROPEAN EXCELLENCE (acronym EEX). This mark affirms the European origin of the instrument and guarantees a long life, expert service and high practical value. Custom piano building for the most demanding customers, P194 Storm concert grand piano..
2008 - Opening of the subsidiary PETROF USA, new P 237 Monsoon, P 173 Breeze and P 159 Bora grand pianos. P 237 Monsoon, P 173 Breeze and P 159 Bora.
2009 - Completion of the new generation of PETROF grand pianos. Collaboration with an audio-legend Mark Levinson (speaker cabinets for high-end audio system DANIEL HERTZ).
2012 – Launch of a new upright piano of modern design, the P 127 Next, (New series Modern Collection)
2013 – The method of intonation is upgraded, PETROF grand pianos now distinguished by wider dynamic range and longer-lasting intonation.
2014 - PETROF celebrates its150th anniversary. Launch of the high-end brand ANT. PETROF and its first instrument, the ANT. PETROF 275.