With services covering 28 provinces, municipalities and cities, CATTSoft's domestic clients include all major telecom operators, major wireless service providers, the Sate Meteorological Bureau , the State Post Bureau, CNC, China Satellite, China Railcomnet, the large electricity companies, the big hotels, the big institutions and government organizations in China.

　　CATTSoft has built solid cooperation relationships with international leading hardware and software vendors as BEA, BO, BRIO, CA, CISCO, DELL, EMC, HP, IBM, MapInfo, Oracle, SAS, SUN and Sybase in the fields of mainframe, server, networking, storage, database, data warehouse, middleware, software development, product testing, etc; and became a value added agency and ISV for these famous system vendors.