Beijing Datang Gaohong Data Network Technology Co., Ltd.
Beijing feilixin electronic technology co., ltd.
Beijing helishi system engineering co., ltd.
Beijing ccid times information industry co., ltd.
Beijing yuanxida engineering technology company
Beijing taiji Huaqing information system co., ltd.
Beijing Zhongdian Xingfa Technology Co., Ltd.
Huadi computer group co., ltd
Taiji computer co., ltd
Tongfang co., ltd
China software
China tong radio and television subsidiary
Zhongke software technology co., ltd.
Ziguang jietong technology co., ltd
Among them, CCID, Huadi and ChinaSoft should only have Grade A design.