NanJing Inst of Surveying Mapping & Geotec Invst. 

Nanjing Research Institute of Surveying, Mapping & Geotechnical Investigation Co. Ltd., headquartered in Nanjing, China, delivers a comprehensive array of surveying and mapping services nationwide. The company's operations span various domains, including geographic information systems (GIS) for mapping, geotechnical and survey design, cutting-edge three-dimensional urban planning and design, smart city system integration, urban and rural development planning, municipal infrastructure projects, and environmental protection initiatives. Moreover, the institute provides specialized services such as topographic, pipeline, and urban construction facility surveys, alongside geological exploration design and high-precision measurement. It also engineers intelligent solutions for drainage and garden systems, subterranean space management, and real-time subway operation monitoring.