1. Four libraries platform, namely the national construction market supervision public service platform,
65438+
/home page
2. Search scope: you can specify qualification type, grade and region to query.
3. The accuracy of information and the difficulty of search are both 5 stars, which is the most accurate and convenient platform for searching at present.
The second is enterprise inquiry, that is, enterprise industrial and commercial information inquiry system,
1. Official website:/
2. Find the path: column of administrative examination and approval of qualification of construction engineering enterprises _> Learn about it in the publicity of basic information of qualification declaration.
3. Information accuracy and search difficulty are both 1 star, which is not very intelligent. Let's use a four-database platform.