Beijing Compassmap Technology Co.,Ltd. : years of service in mapping GPS / GIS industry, has accumulated a wealth of GPS / GIS sales experience and high-tech information technology services companies. Companies involved in the business, including industrial grade mobile platforms (PDA & MC), GPS (GNSS) positioning satellite navigation industry GIS application software development and systems integration, industry GIS engineering data acquisition and operation and maintenance and other aspects of the service industries including electricity , the main industry land, transportation, water conservancy, agriculture, forestry, geology, municipal pipe network, research universities, as well as telecommunications, environmental protection, meteorology, civil, cultural relics and archeology, oil, health, emergency and auditing and taxation chance industries.