Gridspace uses GPU-accelerated deep learning to analyze conversational speech on phone calls. We'll outline our DNN-based approach as well as several commercial applications of call grading. Our GPU-based software stack provides a novel way to process large-scale speech data. Results from a recent case study show call grading to be as accurate as human call grading and highly scalable in production. Deep call analysis with 100% coverage has never been achieved before. Also we'll discuss how this system can be improved by training continuously without expert supervision.