Peugeot, the oldest extant, began manufacture in 1898. Indian Motorcycle began producing bikes in 1901.Triumph produced bikes in 1902 and Harley-Davidson and Husqvarna both in 1903.
The Peugeot company, the oldest still operating, began manufacturing vehicles in 1898.  Indian Motorcycle began making motorcycles in 1901. Triumph started producing bikes in 1902, while Harley-Davidson and Husqvarna both began production in 1903.