Big business means large-scale and corporate-controlled business activities. The term "big business" refers to activities that run from "huge transactions" to the more general "doing big things". United States companies which are classified as big businesses include although are not limited to Walmart, Microsoft, Apple Inc., General Electric, Verizon Communications, Google, General Motors, Amazon, Tesla and Toyota. Apple Inc. had just over $2.1 trillion as of June 2021. Microsoft had almost $1.8 trillion by that same time. Tesla had about $641 billion by June 2021. The biggest United Kingdom business networks are HSBC, Barclays, Unilever and BP (called British Petroleum before 1998).