This survey was part of a European research project that aims at leading construction sites into the Industry 4.0 revolution. The project's name is BIMProve: https://www.bimprove-h2020.eu/. We work with 3 demonstrators in Norway, Spain and Switzerland, where we test different technologies, among them drones, VR, AR, and ground-robots. We now want to map the global start-up ecosystem working with and for the building and construction industry, with a specific focus on technologies, business models, and collaboration with academia. SINTEF is the institution responsible for the project (https://www.sintef.no/).

Please note that certain sections of this survey have been removed to comply with data privacy laws and to safeguard personal information. We prioritize privacy and confidentiality in accordance with legal requirements.