Adidas is a German sportswear company that was founded in 1949 by Adolf "Adi" Dassler, the brother of Puma founder Rudolf Dassler. The company is known for its high-quality athletic apparel, shoes, and accessories. A three-parallel bar and the Adidas wordmark make up the Adidas logo.
The wordmark is very similar to a font called ITC Avant Garde Gothic Demi. The font family Avant Garde Gothic is based on the Avant Garde magazine logo font. You can view and purchase here.