Big Tech, also referred to as the tech giants or tech titans, is a collective term for the largest and most influential technology companies in the world. It commonly denotes the five dominant firms in the U.S. technology industry—Microsoft, Apple, Alphabet (Google), Amazon, and Meta (Facebook)—which are also the largest companies in the world by market capitalization. Other companies sometimes included in the grouping include Nvidia, Tesla, Oracle, and Netflix.
The label draws a parallel to similar classifications in other industries, such as Big Oil, Big Soda, or Big Tobacco. The concept of Big Tech can also extend to the major Chinese technology firms—Baidu, Alibaba, Tencent, and Xiaomi—collectively referred to as BATX.