Wireless sensor networks (WSN) are expected to transform the way communication takes place in the physical world. Organizations need real-time visibility and intelligence for their organizational and operational data to reach this new level of efficiency, accuracy, and cost-savings. It is a network of sensors spread in remote areas to monitor physical and environmental conditions such as motion, light, sound, humidity, and temperature using wireless connectivity technology for communication. A WSN is a network consists of a large number of sensor nodes and gateways. Each node consists of a sensor, microcontroller, transceiver and battery. ________ Note: 1. Micromarkets are defined as the further segments and sub segments of the WSN market included in the report. 2. The core competencies of the companies are captured in terms of their key developments, and key strategies adopted by them to sustain their position in the market.