Centaur Labs offers medical data labeling (classification, segmentation etc.) from a network of medical experts. Instead of having to choose between the high cost of hiring physicians or the low quality of crowdsourced/blended teams, they offer an alternative that leverages collective intelligence and performance based incentives. Their technology, developed by researchers at MIT, collects multiple opinions per case with labelers competing against each other for cash rewards. This process ensures that quality assurance is baked into the process since the labelers are incentivized to perform at the highest level on every case analyzed.