Milwaukee Electric Tool Corporation, known more commonly as Milwaukee Tool, is a multi-national company that develops, manufactures, and markets power tools, hand tools, tool accessories, tool storage, and personal protective equipment. Milwaukee Tool was last sold in 2005 for $626.6 million to the Hong Kong–based Techtronic Industries, also known as TTI Group. The company is now a subsidiary of TTI Group alongside brands like AEG, Ryobi, Hoover, Dirt Devil, and Vax. In 2022, $206 million was invested in Wisconsin research and development facilities.