Professional bidding companies are: Guoxin Bidding, China Recruitment International, Guoyi Bidding, AVIC Bidding, Sinochem Business.

1, Guoxin Bidding

Established in 1999, the domestic larger bidding procurement consulting comprehensive service enterprises, business scope covers bidding agent, engineering consulting, cost consulting, project supervision, project management, investment and financing consulting, Internet technology, international trade and other fields.

2, China Recruitment International

Approved by the former State Economic and Trade Commission in 1993, the company was established to carry out engineering consulting, PPP consulting, BIM consulting, project management, cost consulting, international and domestic trade, and related businesses, with bidding as the lead and relying on a digital project management platform.

3, Guoyi Bidding

The combination of bidding agent services and bidding value-added services, committed to providing customers with the whole process of bidding and procurement agent service providers, mainly for health care, transportation, energy, telecommunications, environmental protection, municipal engineering and other areas of the customer to provide bidding agent services, procurement agents, electronic bidding and transaction services, value-added services for bidding and subsequent procurement.

4, AVIC bidding

Established in 1995, AVIC International Holdings, a wholly owned subsidiary of the company, to provide customers with bidding agency as the core of the whole value chain integration services, bidding business includes goods, engineering and service tenders three categories, the contractors in the aviation industry plant, the military system, the local government of a number of key projects of the bidding work. The bidding business includes three categories of goods and services bidding, and it has undertaken the bidding of many key projects of aviation industry plants, military system and local government.

5, Sinochem Business

Established in 1997, under the China Sinochem Holding, the company provides comprehensive business services such as procurement, management consulting, PPP consulting, whole-process engineering consulting, third-party supervision, international trade, and pan-financial services for customers in many fields.