There are some case studies on the website [0], but I would be wary of them. My experience from working in these kind of research environments is that the case studies are consulting jobs where a few PhD students do work for a company, and in return you can use the company name and write on your website whatever you want. They are probably not actually using the product. I'd be interested to hear about actual users and their experience.
[0] https://www.snorkel.ai/case-studies