The non-profit organization Proquartetto is supported by the Wallonia-Brussels Federation, Wallonia Brussels International, the Walloon Region, the Province of Hainaut, the City of Tournai, the Maison de la Culture de Tournai, and the King Baudouin Foundation (Lemay Fund).
Sponsorship is or has been provided by the following partners: ING and DEXIA banks, the National Lottery, Brasseries de Tourpes (2015-2022), Tournay (2023-2024), Lupulus (2024-2025), and Cazeau (2025-2026), Lemaître Plastic, and luthier André Theunis.
