4STEC is a company that provides data integration management services linked to IoT, cloud, and big data on a digital twin foundation. It offers an IoT platform that collects, converts, processes, and stores IoT device data; an image recognition identification system that identifies images recognized by each sensor based on deep learning, image labeling, optical character recognition (OCR), etc.; a marine pad service platform providing diving point reservation services for scuba diving and offers other nearby accommodating and travel recommendations; and other middleware solutions.