Dottie Mattison is a senior managing director at Guggenheim Partners. Since joining Guggenheim in 2010, she has partnered with portfolio companies including the BCBGMAXAZRIA Group, Lionel LLC, Aurify Brands, dick clark productions and Guggenheim Digital Media. Mattison was previously general manager and senior vice president of the Apparel Global Merchandising Center of Wal-Mart Stores Inc. and chief merchant of Walmart.com. Her responsibilities included chairing the Global Entertainment Council (charged with creating cross-category merchandising programs from entertainment content), leading the Sustainability Textiles Network, completing the Prince of Wales' Business and Sustainability Program at the University of Cambridge and forming an industrywide Apparel Consortium to redefine supply-chain environmental and social standards. Prior to Wal-Mart, Mattison was a merchandising executive at Gap, Old Navy and Gap.com. She is a trustee of the San Francisco School and a director of the Dress for Success Worldwide Board.