Are any large enterprises using Heroku?

Question

I'm interested as sometimes I get friends who are developers telling me about their Ruby deployments, and most of them are in large enterprises which are using Java mainly, but have some small projects in Ruby on Rails.

Answer 1

Since you are not asking a very specific question, I also want to point out that your friends could deploy their Rails stuff to JBoss with Torquebox.

Answer 2

Have a look at the success stories page on heroku.com.