Ask HN: Machine Learning Startups?

What are some startups that are primarily doing Machine Learning? Say, anything including deep learning, visualization, "data science," computer vision, and general AI?

Alternatively, does anyone have (or know of) a list of startups doing machine learning?

I've already asked /r/machinelearning and received a somewhat discouraging response there (I'm already aware that there are "hundreds" of them). Someone said I might do better asking here. Also, I'm not looking for a job, just trying to get an idea of what is out there.

Thanks!