W & T Avery Ltd. was a British manufacturer of weighing machines. Established by William and Thomas Avery when they inherited a scale making business in 1813. They took the name W & T Avery in 1818. In 1891 the business became a limited company, in 1894 the shares were quoted on the London Stock Exchange. In 1895 the company bought the legendary Soho Foundry in Smethwick, a former steam engine factory owned by James Watt & Co. In 1897 the move was complete and the steam engine business was gradually converted to the manufacture of weighing machines.