Beijing Dadi Tongfeng Technology Co., Ltd. was established in 2007. It is a technology company specializing in the rail transit industry, providing wireless communication systems, information control, and security control solutions. It is one of the long-term suppliers of the railway corporation and the general agent and after-sales service center of Funkwerk Systems GmbH in China, a long-term strategic partner and cooperative after-sales service station of HaslerRail AG in Switzerland, a long-term partner of Pixy AG in Switzerland, and a long-term cooperative agent of Gersys GmbH in Germany.

      公司业务范围涉及高铁、地铁列车车载设备，包括数据通讯模块、语音模块、数据/语音电台、司法/事件记录器、速度传感器/编码里程计、人机交互界面显示屏（HMI、DMI、MMI），轨道地面设备，美国AFAR品牌 等。涵盖售前、售后、安装调试等服务，行业应用集成服务与信息技术服务 等多个领域。