Reboux worked with most of the major fashion designers of Europe and provided women hats for their design collections. A notable business practice of Reboux was to divide half the profits of her business among the head cashier, the forewoman, the directress of the workroom, and the head manager. Reboux was appointed to represent Parisian commerce at the Paris World's Fair of 1900. During Reboux's life she maintained a great friendship with the fashion designer Madeleine Vionnet. The Caroline Reboux business finally closed its doors in 1956. More than 300 creations by Reboux are preserved at the Musée de la Mode et du Textile in Paris.