Need to Find a notary in Portola valley, California? Search the list of notaries here. ZigSig is a notary scheduling platform for real estate professionals. We have 31 notaries in an around Portola valley, California. Notaries in Portola valley are based out of the following zip codes: Check notaries experience with lifetime signings total along with customer feedback. All notaries will show badges for commission, bond, E&O and background check.