Mary Ann Walker has thirty years of experience building, operating, and scaling businesses. Walker founded and served as chief executive officer of Walker Advertising LLC, a leading direct-response advertising agency serving the US Latino market and legal industry. She continues to sit on the board of directors. During her tenure, Walker Advertising LLC invested more than $23 million in national media annually, reaching consumers through its brands Los Defensores and The Defenders at 1-800-THELAW2. Her bilingual and bicultural background provides Walker with the foundation for a deep understanding of the market.

Walker serves as the managing partner in her national law firm, WH Legal Group LLP, as a non-attorney. She is also a lecturer at Loyola Law School, the National Trial Lawyers Association, and Marymount University. In addition, she serves on the board of directors of the Boys and Girls Clubs of Harbor Area and Providence Little Company of Mary Medical Center in Torrance, California, as well as on the advisory board for the Woodrow Wilson Center Latin American Program in Washington, DC. In March of 2019, Walker was tapped to serve on the El Paso–Ciudad Juárez Delegation of The National Delegation on Immigration Policy by the Pacific Council of Los Angeles, which is charged with reviewing immigration policy.

Walker is a graduate of Webster University in Los Angeles where she is a member of Delta Mu Delta, the international honor society in business administration. She attended Harvard Business School’s executive education programs on private equity and venture capital and Harvard’s Women on Boards program.