Marty Diamond, Founder & CEO Creativity, innovation and skills in transformative change are TDG's core competencies. Founded in 2002, The Diamond Group focuses on coaching, leadership programs, performance improvement, and organizational transformation. Clients include a wide range of companies and individuals spanning industry, healthcare, government and the non-profit sector. The hallmark of our practice is recognizing that everyone is vital to value creation and quality. To learn more about us, please click on the Background/Awards/Recognition tab. Our clients span the US and abroad. TDG is located in the San Francisco Bay Area. Please contact us at 925-385-0324.