Ask HN: Anyone running a substantial business on wordpress?

I have clients running blogs/content related sites on Wordpress some with revenue over $300k/yr. SaaS/app clients are on Rails or Laravel. I wouldn't recommend building SaaS or an app on top of WP. Go with a framework Rails/Laravel.

Define "substantial"? I've been involved with a variety of businesses that use Wordpress as part of their business, ranging from $xx,xxx a year businesses to $xx,xxx,xxx a year businesses. :)

Also, by "run on Wordpress", do you mean "use Wordpress as their blogging platform and/or for hosting landing pages" or something more?

Hello Bar (http://hellobar.com) is run on Wordpress: http://www.dtelepathy.com/blog/filament/wordpress-saas-appli...