3D RealityMaps offers precise geo-spatial digitization, intelligent geodata analysis, and efficient solutions for the development and management of digital twins. We support cities and regions in setting up a geo-spatial digital twin as a basis for decision-making for future-oriented planning and simulations. Our range of services covers the entire process chain: from spatio-temporal data collection (resolution range of 1 cm – 10 m) using aircraft and satellites, AI-driven geodata analysis, to model-based mapping of the real world in a digital twin for topics such as urban planning, environmental monitoring, climate adaptation, mobility, energy efficiency, land management, and smart cities. With our web-based RealityTwin SaaS platform, we can realistically visualize and manage 3D city and landscape models and link them to thematic geodatabases and IoT devices.