Jump King started in 1948. The company is the largest manufacturer and seller of recreational trampolines in the world, accounting for sixty percent of US trampoline sales. Jump King is headquartered in Addison, Texas.
In 2005 Jump King was purchased by YJ (USA) Corporation. YJ (USA) corporation specializes and functions as a sewing manufacture of textiles, soft goods and metals and it has now gone into the trampoline business.