In the last six months, we have started to use drones at my work.
I work at a land surveying and civil engineering firm, and we use a couple of drones now in our land surveying. We have a Phantom 4 we use for small jobs, and a larger Matrix 600 we use for big jobs. We are basically doing aerial photography to create topographic maps using the principles of photogrametry. We set ground control targets using traditional GPS surveying techniques, and then the drones fly a grid pattern over the site taking photos at set intervals. We then can post process all the photos with the ground control and get a point cloud. It has really cut down on the amount of time it takes us to do bare earth topo, plus having the high resolution photos to use as background images in our drawings works well too.
Being that I have flown RC aircraft for years, I was picked to be one of the auxiliary pilots (our surveyors are the main pilots). So I went out and got my FAA 107 license. I have flown a half dozen missions in the past few months, and it is fun. It seems like every time we take one of our drones out we spend as much time answering questions as we do flying missions.