Another interesting find is that technology is hot. Software was the most represented industry on the list, and Google topped several categories including LinkedIn's global rankings.

These findings are based on InDemand Employer rankings that LinkedIn says were powered by Talent Brand Index, a new, free service for LinkedIn's Talent Solutions customers.

The new service analyses interactions that take place every year between LinkedIn's more than 175 million members and the companies on LinkedIn.

LinkedIn said in a statement that this service allows companies to measure and benchmark the strength of their employer brand.

Bigger isn't necessarily better