The most convenient way is to search directly by the name of the builder or certificate number, etc. If you only have the project information, you can search the project content through the Sikuyi platform, the local Ministry of Housing and Urban-Rural Development of Henan Province, the Government Procurement Network, the Public Resource Information Trading Center, etc., so as to understand the specific details of the participating construction engineers. information. However, it should be noted that there may be delays in updating small-scale projects through official national channels (due to the existence of dual-network qualifications). At this time, you can choose a professional construction big data platform such as Jian Guanjia. The query steps for the section are roughly the same as above, but it can ensure the speed of updates to a large extent, allowing users to promptly control the latest first-hand information about relevant construction engineers. If my answer can be helpful to you, please give it a big thumbs up.