There should be support added for verifying Google+ branch pages that require code like the following:

<link href="https://plus.google.com/719871249817291287" rel="publisher" /><script type="text/javascript">
(function()
{var po = document.createElement("script");
po.type = "text/javascript"; po.async = true;po.src = "https://apis.google.com/js/plusone.js";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(po, s);
})();</script>

where "719871249817291287" is the page ID.