Founded in 1931, Stone & Youngberg is one of the nation's oldest private investment firms. Stone & Youngberg provides underwr ... iting and investment services and offers a wide variety of tax-exempt and taxable securities for investment by individuals and institutions. The firm is headquartered in San Francisco with offices in Los Angeles, San Diego, New York, Chicago, Phoenix, Albany, NY, Richmond, VA, Annapolis, MD and Big Bear Lake, CA. read more