Guillermo Perales Guillermo Perales Irving, TX Guillermo Perales is a self-made success. After completing his MBA he created Sun Holdings, which he guided for over 15 years. Guillermo Perales became the United States’ largest Latino franchise owner with 400 franchise operations. Skilled in business and finance, Guillermo Perales has served on boards for education, finance, food, and for minority and Hispanic business leaders. His board memberships include: Southwestern Medical Foundation, Burger King Advisory Board, Dallas Regional Chamber of Commerce, the New American Alliance, and many more.