Ningbo Skynet Security Service Co., Ltd. is the designated unit that Ningbo has obtained the security certificate. Ningbo Tianwang Security Service Co., Ltd. is the only designated unit for the examination of security guards' employment certificate designated by the Public Security Detachment of the Municipal Public Security Bureau. It is equipped with an independent training center and complete training facilities, with an investment of 400,000 yuan and 50 independent computers, which can accommodate 50 people for training and examination at the same time.