51Sim

Based in Beijing, China, 51Sim develops data-driven simulation platforms and synthetic data generation software for autonomous driving and smart transportation. Operating as a business unit of digital twin company 51WORLD, the enterprise provides full-stack testing solutions, including the Sim-One platform and Dataverse, to automotive original equipment manufacturers and Tier 1 suppliers. The division serves hundreds of industry clients and secured $7 million in Series A funding, while its parent company raised a $30 million Series C round before listing on the Hong Kong Stock Exchange in 2025. To integrate its simulation software with advanced computing platforms, 51Sim maintains strategic technology partnerships with prominent hardware firms, including NVIDIA, Horizon Robotics, Black Sesame Technologies, and Moore Threads. The organization was established in 2017 as an incubated project under 51WORLD, which was founded by Li Jian.