There are many factories around the world that manufacture pcb aseembly. Some popular manufacturers of pcb aseembly include Shenzhen Langke Automation Equipment Co., Ltd.,Termway (Beijing) Precision Technology Co., Ltd.,Termway (Beijing) Precision Technology Co., Ltd.,Termway (Beijing) Precision Technology Co., Ltd.,Termway (Beijing) Precision Technology Co., Ltd.. There are also many other smaller manufacturers and specialized companies that produce pcb aseembly for specific industries or applications.