Spanx

Spanx, an Atlanta, Georgia-based fashion-retail company, makes money by designing and selling shapewear, apparel, and intimates directly to consumers and through various retailers. The company focuses on creating comfortable and flattering foundational garments, including bras, panties, leggings, and hosiery, which aim to smooth and sculpt the wearer's figure. Its products are sold globally, targeting a broad customer base seeking undergarments and clothing that offer both support and style.

The fortune of Sara Blakely is tied to Spanx, as she is the founder of the company. Her wealth largely derives from her ownership stake in the business, which has grown to a market capitalization valued in the billions. Spanx generates hundreds of millions in revenue annually through the sales of its extensive product line, solidifying its position in the competitive fashion and intimate apparel market.