David D. Ossip is an entrepreneur and businessperson who founded Workbrain Corp., Dayforce, Inc. and Almada, Inc. and who has been the head of 7 different companies. Currently, Mr. Ossip is Chairman & Chief Executive Officer of Ceridian HCM Holding, Inc. and Chairman & Chief Executive Officer for THL, Chairman & Chief Executive Officer for Ceridian For Small Business and Chief Executive Officer for Ceridian Tax Service, Inc. (which are all subsidiaries of Ceridian HCM Holding, Inc.), President for Young Presidents' Organization (Chicago) and Director & Manager at Ceridian Holding II LLC. David D. Ossip is also on the board of 7 other companies. In the past he was President & Chief Executive Officer of Workbrain Corp. and President & Chief Executive Officer at Dayforce, Inc. He received an MBA from Harvard Business School and an undergraduate degree from the University of Toronto.