Ironman 4×4 products are designed in Australia and distributed throughout the world. Originally established in 1958, as a Melbourne based suspension parts manufacturer, named Jacob Spring Works. The company in 1982 took shape as JSW Parts, (short for Jacob Spring Works) to design and supply leaf and coil springs for cars, trucks, buses and 4×4 vehicles. JSW Parts soon became well known as a manufacturer and supplier of suspension parts all around the world.