•
Mercury (toy manufacturer), a brand of diecast toy cars manufactured in Italy •
Mercury Communications, a British telecommunications firm set up in the 1980s •
Mercury Corporation, an American aircraft manufacturer •
Mercury Cyclecar Company, a defunct American car company •
Mercury Drug, a Philippine pharmacy chain •
Mercury Energy, an electricity generation and retail company in New Zealand •
Mercury Filmworks, a Canadian independent animation studio •
Mercury General, a multiple-line American insurance organization •
Mercury Interactive, a software testing tools vendor •
Mercury Marine, a manufacturer of marine engines, particularly outboard motors •
Mercury Technologies, a financial technology company •
Mercury Truck & Tractor Company, a defunct English manufacturer of industrial vehicles • Shenzhen Mercury Communication Technology Co., Ltd., a Chinese market subsidiary of
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