List of notable or famous Costco employees, listed alphabetically with photos when available. This list is a directory of the best Costco employees, showcasing only the most prominent Costco employees of all time. This list features past and present top Costco managers, including both current and retired Costco executives and alumni. Well-known Costco staff along with current and former Costco employees were and still are crucial to the company's success, as without these hard working men and women Costco would never be what it is today.List is made up of a variety of people, including James Sinegal and Jeffrey H Brotman. This renowned Costco employees list answers the questions, "What famous people have worked at Costco?" and "Who are the most famous Costco employees?"