The orchestra is organised as a trust and receives public assistance from the Norwegian government, Trøndelag county and the municipality of Trondheim.
During World War II, the Frimurerlogen was renamed the Deutsches Haus, while the country was under German occupation, and the orchestra gave concerts in various Trondheim churches.
In 1952, the orchestra established the Princess Astrid Music Award to recognize talented young Norwegian musicians, with pianist Kjell Bækkelund as the first winner.
[2] Chang is scheduled to conclude her tenure as chief conductor of the Trondheim Symphony Orchestra at the close of the 2024–2025 season.
In February 2021, the orchestra named Gaffigan its new principal guest conductor, with immediate effect, with an initial contract of two seasons.