Business Insider published an interesting infographic today breaking down the demographics of LinkedIn‘s some 157 million users. They got their information from a recent report released by Zoomsphere, which provides statistics on the major social networks, and it breaks down like this:

The United States boasts the most users with over 61 million to its name, followed in a distant second by India, with 14 million. The United Kingdom (8.9 million), Brazil (7.6 Million), Canada (5.5 million), and France (3.5 million) round out the other top slots. Within the US, the New England states claim the most followers. California and Texas complete the top of the list.

Consisting of working professionals, users of the site tend to be between 35-54 in age. Large companies, with over 10,000 employees, grab 58% of the pie when broken down by company size. By industry, higher education takes the biggest chunk with 18.7%, but these figures seem to be more evenly distributed, with Insurance (13.9%) and Financial Services (11.8%) round off the top three.

The majority of the top followed companies are IT-related. IBM (589,828 people), Hewlett-Packard (442,815), Microsoft (424,204) make up the top three.

Basically what this all boils down to, is that LinkedIn has become the premiere social networking site for corporate America. Companies already prefer the social networking site for recruiting, and with the advent of the “Follow Company” button they expect to make an even bigger splash in the corporate world. Where Twitter has carved out its niche for following celebrities, LinkedIn has done the same for following companies.