Internet of Things (IoT) is delivered by connecting both legacy and new devices using sensors and CT scanners. These devices are currently isolated, which makes collecting data and managing these industrial and commercials systems a daunting task. We use Industry standard protocols to connect these devices to exchange data securely and efficiently in real-time. Some customers who have connected their HVAC (Heating, ventilation and Air Conditioning) systems using secure IoT gateways have saved money by proactively monitoring and managing these systems.