Co-Founder, Broadcom
WHY: Estimated wealth of $4B from stock in chipmaker he started in 1991 with Henry Samueli, active philanthropist.
RECENT: Spends time on Nicholas Academic Centers, nonprofit for under-served communities in area. Resolution reached this summer over well-publicized drug case in Las Vegas; plea deal spares him from prison time.
NOTABLE: Spearheaded victims’ rights legislation known as “Marsy’s Law,” which has gained traction across country; named after late sister who was murdered in 1983.