The systems and methods of seamlessly connecting an internet of things (“IoT”) device to one or more intelligent voice assistants, comprising: configuring a manager module to manage an IoT device connected to a network; receiving a speech command for the IoT device at the manager module through a mobile application, a smart speaker, a web interface or any other user interface; connecting to a central Speak-to-IoT cloud service; receiving a map to connect to a customer specific Speak-to-IoT cloud service based on the customer, IoT device type and manager module; authenticating with the customer specific Speak-to-IoT cloud service; communicating and executing the speech command on the IoT device. The systems and methods further comprising adding or replacing one or more IoT device with another device type or manager module of another type.