Sigma AI

With 30+ years of experience in data annotation, we support AI innovators to build smarter AI. Sigma AI has sourced, vetted and trained 25,000+ experts who speak 600+ languages and dialects.

We offer human data annotation, training data sourcing, and proprietary technology to accelerate these projects. We guarantee quality results and specialize in generative AI, rapidly scaling projects, and exceptional standards for ethics and security.