CrowdFlower - Enterprise crowdsourcing for micro-tasks
Labelbox - Build computer vision products for the real world
Amazon Mechanical Turk - The online market place for work.
CloudFactory - Human-powered Data Processing for AI and Automation
Universal Data Tool - Machine learning, data labeling tool, computer vision, annotate-images, classification, dataset
Labeling AI - Labeling AI is a deep learning-based auto labeling solution that develops and auto-labels custom AI by learning minimal manual labeling data.