AI as a platform

https://openai.com/

https://stability.ai/

https://www.prnewswire.com/news-releases/stability-ai-announces-101-million-in-funding-for-open-source-artificial-intelligence-301650932.html

https://www.aiforalpha.com/#team

Help asset managers improve their investment decisions with AI

https://mainly.ai/

lists

https://blog.disfold.com/top-ai-startups/
https://explodingtopics.com/blog/ai-startups