| 1907 | Wiener Tonkünstler Orchester founded with 83 musicians; first concert on 10 October 1907 at the Vienna Musikverein. Conductors: Oskar Nedbal, Hans Pfitzner, Bernhard Stavenhagen |
| 1913 | Premiere of the “Gurre-Lieder” by Arnold Schönberg with the Philharmonic Choir; Conductor: Franz Schreker |
| 1919 to 1923 | Principal Conductor: Wilhelm Furtwängler |
| 1932-1933 season | Guest conductors: Bruno Walter, Otto Klemperer, Felix Weingartner, Hans Knappertsbusch, Hermann Abendroth |
| 1932 | Merger between the Wiener Tonkünstler-Orchester and the Wiener Concertverein; disbandment of the Wiener Tonkünstler-Orchester as an organisation |
| 1933 to 1944 | NS Wiener Tonkünstlerorchester and Gausymphonieorchester Niederdonau under Austrofascism and National Socialism |
| after 1945 | Niederösterreichisches Landes-Symphonie-Orchester (State Symphony Orchestra of Lower Austria), numerous concerts in Lower Austria, but primarily in Vienna |
| 6 October 1946 | Revival of the Sunday Afternoon Concerts in the Vienna Konzerthaus with a “Bruckner Memorial Concert” |
| since 1949 | Sunday Afternoon Concerts at the Vienna Musikverein |
| 27 January 1950 | Constitutive meeting of the organisation the Niederösterreichisches Tonkünstlerochester |
| 1954 to 1965 | Over 240 concerts for the Lower Austrian Chamber of Labour |
| 1955 to 1988 | Concerts in the arcaded courtyard at Vienna City Hall |
| 1957 | Diploma concert with Zubin Mehta and Claudio Abbado |
| autumn 1957 | Tour of Germany with Elly Ney |
| 1963 to 1975 | Music Director: Heinz Wallberg |
| September 1979 | Tour of the USA |
| 1985 | First tour of Japan |
| June 1992 | Second tour of Japan |
| 1995 to 2000 | Music Director: Fabio Luisi |
| June 1996 | Third tour of Japan |
| 1 March 1997 | Opening of the Festspielhaus St. Pölten with Mahler’s Symphony No.2 “Resurrection”, since then the resident orchestra at St. Pölten |
| 2000 to 2003 | Music Director: Carlos Kalmar |
| 1 March 2002 | Founding of the Niederösterreichische Tonkünstler Betriebsgesellschaft m.b.H. |
| 2003 | Relocation of the management and music library to the Festspielhaus St. Pölten |
| 2003 | Founding of the “Tonspiele” music education department |
| 2004 to 2009 | Music Director: Kristjan Järvi |
| 2005 | Signing of a permanent funding agreement with the state of Lower Austria; incorporated into the NÖ Kulturwirtschaft umbrella organisation |
| 2007-2008 season | Jubilee season celebrating 100 years of the Tonkunstler |
| 21 June 2007 | Opening of the Wolkenturm, Grafenegg; first Grafenegg Festival, since then the resident orchestra at the festival |
| 8 November 2007 | First Plugged-In concert at the Vienna Musikverein |
| 2008 | Opening of the Auditorium, Grafenegg |
| 2009 to 2015 | Music Director: Andrés Orozco-Estrada |
| from the 2015-16 concert season | Music Director: Yutaka Sado |
