Here's a list I put together:

https://usefind.ai/searches/startups-seed-to-series-c-workin...

A business reference librarian at a large public library would be able to give you pointers on good sources to search for that info.

Also, posting your question in one of the larger ML discussion forums might get some good answers.

You can also search websites like this one: https://www.ai-startups.org/top/machine_learning/ or https://topstartups.io/jobs/?startup__markets=Artificial+Int... or https://aimultiple.com/hub/ml#market-map