Big Tech, also known as the Tech Giants or Tech Titans,[1] are the largest ITcompanies in the world. The concept of Big Tech is similar to the grouping of dominant companies in other sectors.[2] It generally includes the Big Five tech companies in the United States: Alphabet (parent of Google), Amazon, Apple, Meta, and Microsoft.[3][4] It can also include tech companies with high valuations, such as Netflix and Nvidia, or companies outside the IT sector, such as Tesla.[5][6][7] Groupings of these companies include the Big Four (Alphabet, Amazon, Apple, Meta), Big Five (Alphabet, Amazon, Apple, Meta, Microsoft), and Magnificent Seven (Alphabet, Amazon, Apple, Meta, Microsoft, Nvidia, Tesla). Big Tech can also include Chinese companies such as Baidu, Alibaba, Tencent, and Xiaomi.