It's my understanding that at Mozilla you can choose to work remotely or in their office, so I imagine they shoot to make everything virtual to make that as seamless as possible. GitHub is largely distributed too [2].

I'd say that Automattic, the company that this poster works for, is pretty well-known and successful (makers of Wordpress, Gravatar, etc.).

Also, DuckDuckGo (where I'm an intern) is mostly distributed, though you might have to stretch your definition of well-known to include us. :)

[1] See around 1:30 in this video (I can't remember where I actually read about this): http://careers.mozilla.org/en-US/ [2] http://zachholman.com/posts/how-github-works-hours/ , http://zachholman.com/posts/how-github-works/

37Signals and Github are two of my favorites

Basho, Github, and Percona immediately come to mind. Lots of other companies (including my current home, ideeli) have distributed Tech departments with employees all over the world.

Here is a link to a blog post about our company working remotely.

https://creativemarket.com/blog/2012/07/31/working-together-...

Not as well-known as some of the other examples, but our company, Lincoln Loop (http://lincolnloop.com), is successful and fully virtual.