This is a really hard question to answer. We've got everyone from scrappy one-person startups building products on Anvil, to larger startups pumping terrifying quantities of money through Anvil apps, to Seriously Large Companies We Can't Name building internal tools with our on-premises version.

Right now we're taking it all as it comes, but we never want to lose our focus on accessibility: It's way too hard to build web apps with today's traditional tools, and we want to make it easier for everyone.

Can you give examples of live sites running on Anvil?

I can't really talk about most of them, but I described one example down here: https://news.ycombinator.com/item?id=15589020