After the war, Rosbaud took up residence in England. He worked for Butterworth-Springer, a company set up in response to a Scientific Advisory Board that included Alfred Egerton, Charles Galton Darwin, Edward Salisbury, and Alexander Fleming. When the Butterworth Company decided to pull out of the English/German liaison, Robert Maxwell acquired 75% while 25% rested with Rosbaud. The company name was changed to Pergamon Press; the partners, with their considerable language skills, cooperated in establishing new academic journals until 1956. After a disagreement, Rosbaud left. Maxwell said Rosbaud "was an outstanding editor of the European type from whom I learned some of the trade in the early days".