Log into your website and view the admin panel.
Go to the games dashboard "/admin/games"
Type in "Final Fantasy XIV:" and results should show
Select your server
Once the game is added, go to your teams
On the top left, click "Free company import"
Type in your company name AND your company ID. Your company ID is usually a 19 digit number. You can find your company ID on the lodestone (Lodestone site). Search for your guild. Look at the URL. Your company ID is the number before '/member/'.