1. government website inquiry: Visit the official website of relevant government departments or institutions, and the website will provide the inquiry function of unit number. Enter the name of the company to be queried on the corresponding page, and click the "Query" button to get the corresponding number of the company.
2. Query by search engine: enter the name of the company to be queried in the search engine, and the company number is found in the relevant information.
3. Telephone consultation: contact the local government department by telephone, provide the necessary information such as the name of the inquired unit, and help find the telephone number of the unit.