At present there are mainly research and pilot projects on a number of farms. For example, the concept is gaining popularity and national support in the Netherlands where there are six farms operating within the framework of smart farming as part of the National Smart Farming Pilot Project. You can read more about it here: https://www.proeftuinprecisielandbouw.nl/ There are also attempts to introduce smart farming in Indonesia in Situbondo, East Java, but these are more like government-led pilot projects.