How to Link Your Company’s Google+ Page to Your Website
You should really consider linking your company’s Google+ Page to your website. You can do this through a small snippet of code Google gives you or a Google+ Badge for your Google+ Page that you can put anywhere on your website.
To link with code (which just tells Google+ that the Google+ Page is owned by your website), follow these instructions:
Log in as your Google+ Page by clicking your name in the upper-right of plus.google.com and selecting your Google+ Page from the drop-down list.
At this point you should be able to post as your Google+ Page, and you’ll be on the news feed for your page.
Go to your Profile section for your page via the links on the left.
This will take you to the profile page for your Google+ Page.
Select the Edit Profile button in the upper-right (or somewhere at the top, depending on your screen resolution).
Now you’ll be in edit mode for your profile.
Make sure you’ve entered your website in your page’s profile, and click the Link website button.
To add a website, just click the website field for your page’s profile, and you’ll be able to add a link for your website. The Link website button is on the right and will initiate a dialog on top of the page that gives you a code snippet you can copy and paste into your website.
Copy and paste the code where you want it to go in the HTML for your website.
By default this shows up as an <a> tag that you can paste as a link anywhere on your website. If you don’t want this visible to visitors, just interchange the a with link so it’s a <link> tag instead of an <a> tag, and leave all the other attributes there. You can then place it in your website’s <head> section where the average visitor won’t see it.
After you follow the steps just given and associate your website with your Google+ Page, the page is eligible to have a verified check mark appear next to its name. That check mark signifies that Google has verified your Google+ Page as being owned by the website it represents.
This technique is highly recommended if you want your visitors on Google+ to know for sure it’s run by the company it represents. When you’re eligible for this status, work with a Google account rep to place the actual check mark next to your page name. This feature is usually only available to people with large ad accounts, so if that’s not you, you’re out of luck for now.