The AI and machine learning data preparation market has been heavily reliant on manual data labelling. The market's 2018 valuation of $500 million is forecast to hit $1.2 billion by 2023.

Pertinently, in that same period, the third-party data labelling solutions market is expected to rocket. In 2018 it was worth $150m, yet by 2023, the space is likely to reach a $1 billion valuation.

And by 2028, the data labeling space is expected to grow to $8.2B (at a CAGR of 25.6%).