There are three ways to set a company's vertical.
Table view (drop down) :
1 . Go the Companies page under contacts, then click the drop down for the company you want to Edit.
2. Click on the drop down menu for vertical. Select "Manage Verticals" to add new Verticals if needed.
3. Input your vertical name and click on "Save Vertical"
Table view (column edit) :
Company Page:
1 . Go to the Companies page and click on a company's name
2. Click on the 3-dots and select "Edit"
3. Click on the drop down menu for vertical. Select "Manage Verticals"
4. Click the plus sign, then "Add New" to add new verticals.
5. Input your vertical name and click on "Save Vertical"