Lots of different industries are interested in the potential for drones to improve their businesses, from agriculture to mining to merchants like Amazon. There is a wide range of powerful units that can be bought off the shelf. The challenge for most companies is creating the software, sensor packages, and safeguards they need to make drones a practical reality for their day-to-day work. Airware, a drone startup based in San Francisco, hopes to solve those problems by providing an aerial operating system. Today it announced it had raised $ 25 million in a round led by Kleiner Perkins to grow its staff and launch its product to the wider public.