The following are some of Nike's primary rivals and alternatives: Adidas. Adidas, which began its operations in 1949, is now a worldwide brand and Nike's primary rival. That's a New Balance. New Balance was established in 1906, and since then it has grown to become one of the most successful footwear companies in the world. Puma. Reebok. Converse. Fila. Under Armour. Lululemon.