Apple Inc. is an American multinational technology company headquartered in Cupertino, California. Apple is the world's largest technology company by revenue, with US$394.3 billion in 2022 revenue.^[6] As of March 2023, Apple is the world's biggest company by market capitalization.^[7] As of June 2022, Apple is the fourth-largest personal computer vendor by unit sales and second-largest mobile phone manufacturer. It is one of the Big Five American information technology companies, alongside Alphabet Inc. (parent company of Google), Amazon, Meta Platforms (formerly Facebook, Inc.), and Microsoft.