Techtronic Industries Company Limited (TTI Group or TTI) is a Hong Kong-based company that designs, produces, and markets power tools, outdoor power equipment, hand tools, and floor care appliances under a variety of wholly owned and licensed brands. The company's products are used by consumers, professionals, and industrial users in the home, construction, maintenance, industrial and infrastructure industries. TTI was the first company to produce heavy-duty cordless power tools powered by lithium-ion rechargeable batteries. Its expertise in brushless motors, advanced system electronics and firmware has contributed to the company's performance.

The company was founded by Horst Julius Pudwill and Roy Chi Ping Chung in 1985. TTI's brand portfolio includes Milwaukee Electric Tool, AEG, Ryobi, Homelite, Empire, Stiletto, Hoover US, Hart, Oreck, Vax, and Dirt Devil. It has a worldwide customer reach, and staff of more than 51,000. TTI has manufacturing bases and facilities in China, Vietnam, the U.S., Mexico and Europe. In 2021, TTI's annual sales were more than US$13.2 billion. TTI has been listed on the Hong Kong Stock Exchange since 1990 and was listed as one of the Hang Seng Index constituent stocks in 2019.