Wednesday's visit follows Netanyahu's meetings with President Barack Obama in Washington, D.C., on Monday and visits with Jewish leaders in Los Angeles on Tuesday.
This is the first California visit from an Israeli prime minister since 2006. Netanyahu is to meet with business leaders from LinkedIn and Apple, along with WhatsApp co-founder Jan Koum, a Jewish Ukrainian immigrant who sold his company to Facebook for $19 billion last month.
Brown and Netanyahu plan to sign an agreement promoting trade and economic development.
Israel might also have some water conservation advice for California, which is in the midst of a severe drought.