The SERCOS trade associations are a group of associations dedicated to developing, promoting and expanding the use of the SERCOS digital interface for interconnecting motion controls, drives, I/Os, sensors and actuators for numerically controlled machines and systems. Members of the associations are manufacturers and users of controls, drives and other automation components, as well as research institutions, educational institutions and other organizations that have an interest in SERCOS. The parent organization is SERCOS International, headquartered in the area of Stuttgart, Germany. It has subsidiaries SERCOS North America and SERCOS Japan. SERCOS International -- Parent organization, handles SERCOS throughout the world except for North America and Japan. SERCOS North America -- Handles SERCOS only in North America with members only from the U.S., Canada and Mexico. SERCOS Japan -- Handles SERCOS only in Japan, with members only from Japan. SERCOS China -- Handles SERCOS in China.