You can set up industry categories by selecting "Industry" from Settings. Follow the steps below:

1. In the [Settings] tab, click on [Industry] under the [Customize Categories].
   
    

2. Once you enter the editing screen, you can add, modify, and delete industry categories.
   
    

3. When adding a company, you can select a industry category you have added.
   
    

4. When searching for a company, you can also use the industry category to search for related companies.