Market landscapes / Model Development
Model Training & Fine-Tuning companies
Tooling for training and fine-tuning models on your own data. 4 of the 16 have been acquired, the highest proportion in this theme.
Updated 12 October 2026
16 companies
4 acquired
9 hiring now
The rest of the Model Development landscape
The full map, including the sub-sectors too small to list separately.
The whole Model Development mapFoundation Model Labs 32AI Research Labs (Reasoning, Interpretability, Safety) 22Reinforcement Learning & Post-Training 14
I am Ben Jackson. I map this market and I hire the commercial teams inside it: sales, marketing, product and delivery. If you are building a team in Model Training & Fine-Tuning, here is how I work. The whole market in numbers.