Virtual City Systems (VCS) is a Berlin-based software company specialising in 3D geodata infrastructure and digital twin solutions for cities. Founded in 2005, VCS has built a modular software suite around CesiumJS and open standards (CityGML, OGC 3D Tiles) to help cities across Europe visualise, analyse, and manage urban spaces in three dimensions.
VCS's technology underpins the Berlin Digital Twin — the city's official three-dimensional virtual model used for urban planning, environmental simulation, and citizen communication. The company's solutions enable city administrations to integrate real-time data from traffic, climate, energy, and infrastructure systems into interactive 3D city models, supporting evidence-based decision-making and transparent public consultation.
The company's product portfolio includes VC Map (web-based 3D visualisation), VC Publisher (data distribution), VC Planner (urban planning simulation), and VC Database (based on the open-source 3DCityDB). VCS has been a key contributor to the development of the 3D City Database, one of the most widely used open-source platforms for managing semantic 3D city models worldwide.
VCS serves customers across Germany and Europe, including the cities of Berlin, Hamburg, Bremen, Helsinki, and Singapore. The company is an active participant in Germany's Connected Urban Twins programme and advocates for open-source approaches to urban digital twins. VCS has received recognition from Cesium for its pioneering work in bringing open, scalable urban planning tools to the public sector.