WEG S.A. is a Brazilian company operating worldwide in the electric engineering, power and automation technology areas, headquartered in Jaraguá do Sul, Brazil.

[2] The company Eletromotores Jaraguá was created on 16 September 1961 by Werner Ricardo Voigt, Eggon João da Silva and Geraldo Werninghaus (respectively an electrician, an administrator and a mechanic).

In 1968, WEG created CentroWEG, a training center to aid in the lack of qualified professionals in the area of mechanical engineers.

[4] In February 2012, the Canadian manufacturer Ballard Power Systems signed a deal with WEG to assess the market opportunities for hydrogen PEM fuel cell products and services in applications.

[10] In 2024, WEG acquired the industrial electric motors and generators business of Regal Rexnord Corporation, including the Marathon, Cemp, and Rotor brands.