David and Charles Sinegal

David and Charles Sinegal co-founded Costco Wholesale Corporation, a leading global warehouse club retailer. David Sinegal, with a background in retail management, played a key role in developing Costco’s successful business model focused on high volume, low prices, and member membership fees. Charles Sinegal, often associated with operational and strategic aspects, helped shape the company's growth and culture. Together, they built Costco into a highly efficient company known for value, quality products, and customer loyalty, revolutionizing the wholesale retail industry while maintaining a strong emphasis on employee satisfaction and cost control.