PROFESSIONAL SOURCES INC. Since 2012, we have been one of Canada's Premium sources of Stock for both local and international supply. We have built and maintain constant supply channels of quality branded equipment from Dell, HP, Acer, and Apple and much more. We are one of Canada's leaders in marketing and selling surplus ICT equipment including: Desktops, Servers, Notebooks, Network Products, Printers, Telephone equipment, Copiers and other Specialised ICT equipment.