Scale AI

Scale AI has cornered the most critical and unglamorous bottleneck in the AI pipeline: high-quality training data. The company employs a global workforce of over 100,000 data annotators (via its Remotasks platform) and has labelled the training datasets used by OpenAI, Google, Meta, and the US Department of Defense. At a $14B valuation after its 2024 funding round, Scale AI's founder Alexandr Wang (age 27) became the world's youngest self-made billionaire. The company has expanded beyond labelling into full AI development cycles through its Donovan platform, which has become the standard AI operations tool for the US military.