"An overwhelming 85% of companies holding Section 333 exemptions are small businesses. Applications span a variety of industries, but are largely tied to aerial data gathering. However the states with the most companies operating commercial drones aren’t just the biggest states, but territories with major aerospace and aviation industry hubs, like California, Texas, and Florida."
http://fortune.com/2015/09/20/faa-drone-operators/
http://fortune.com/2015/09/20/faa-drone-operators/