What are the listed enterprises and institutions of surveying and mapping geographic information?

Aerospace electronics: engaged in aerospace electronic measurement and control, aerospace guidance, cold weather electronic components manufacturing, products are widely used in all kinds of satellites.

Aerospace electromechanical: engaged in the design, research and development, production and sales of key components and navigation terminals for Beidou satellite navigation applications, and is the largest Beidou terminal supplier in China.

Big Dipper: a leader in the application field of Beidou satellite navigation/surveying and mapping, mainly engaged in the integration of location-based information service systems, the supply of satellite navigation and positioning products and location-based information services.

Huali Chuangtong: It produces Beidou-2 navigation baseband chips, which are suitable for personal handheld terminals and vehicle-mounted platforms.

Jiangsu Sanyou: 75% of Jiangsu Beidou Technology operates communication base stations and Beidou /GPS dual-mode timing synchronization equipment for power monitoring.

Lianqiang: The main products are GIS data acquisition products, high-precision measurement products, system products and vehicle navigation products.

Hagrid Communication: Products include Beidou navigation chip and multi-standard satellite navigation receiving system.

Hypergraph software: mainly engaged in GIS basic platform software, GIS industry application platform software and GIS technology development services.

Zhonghaida: products include GNSS, GIS data collector, ultrasonic digital sounder and GNSS system engineering solutions.

Digital Zheng Tong: GIS industry application software provider. Its main products include digital city management information system, digital city management wireless data acquisition system and land and resources management information system.

NavInfo: the leader of navigation electronic map in China and the fifth largest manufacturer of navigation electronic map in the world. Its products include car navigation, consumer electronic navigation and electronic map services.

Mid-survey navigation: (coming soon) A world-famous brand in GNSS industry, whose products cover eight fields: high-precision survey GNSS, GIS data collector, deformation monitoring system, mobile surveying and mapping, unmanned aerial vehicle, precision agriculture, intelligent transportation and marine surveying and mapping.