Litmus helps more than 250,000 marketers make email better. Our web-based email creation, testing and analytics platform empowers marketers, designers and agencies to confidently deliver a superior subscriber experience.
Our backend is primarily C# with a mix of other stuff, our front end is a rapidly expanding Ruby on Rails application.
We're originally boot strapped and just took our first round of growth equity 10 years in and have big plans in 2016.