The Internet of Things (IoT) has provided a possible opportunity to construct strong economic systems and applications by leveraging the rising prevalence of radio-frequency identification (RFID), wirelessly, mobile, as well as sensing devices. A wide range of industrial IoT applications have been developed as well as deployed in past years. In order to better comprehend the expansion of IoT in industry sectors, this article reviews existing Iot research, major enabling technologies, important IoT applications in enterprises, and research directions but also impediments. The main value of this study work is that it meticulously describes the current state-of-the-art IoT in enterprises. Due to the obvious rapid improvements in technology and infrastructure facilities, IoT is expected to be widely employed in industries. For instance, the food industry is merging WSN with RFID to build automated solutions for tracking, analyzing, as well as tracing quality of food along the distribution process to improve quality of food.