Beijing 51World Digital Twin Technology Co., Ltd. is a digital twin technology company operating in China and internationally. It offers the 51 All Elements Scene (AES) Digital Twin Platform, which includes an AES digital base, an infinite simulation engine, and a world developer platform; the 51Sim Synthetic Data and Simulation Platform, comprising SimOne for intelligent driving and robotics simulation, DataOne for data closed-loop and synthetic data, and TIM for traffic information modelling; and the 51Earth Digital Earth Platform, a spatial management application powered by natural language interaction. The company develops applications using 3D graphics, simulation, and artificial intelligence technologies, serving cities, water conservation, and AI applications such as autonomous driving, smart devices, and robotics. Formerly known as Host Mobile Green Land Internet Technology (Beijing) Co., Ltd., it was founded in 2015 and is based in Beijing, China.