Big Tobacco
Big Tobacco is a name used to refer to the largest companies in the tobacco industry. There are five that are normally included: Philip Morris International, British American Tobacco, Japan Tobacco, Imperial Brands, and China Tobacco. Altria, which only sells in the United States, is also one of the largest tobacco companies.
The label draws a parallel to similar classifications in other industries, such as Big Tech, Big Oil, Big Soda, or Big Pharma.