Back in 2004, when Efficion was just starting up and open source Content Management Systems were a fairly new concept, Efficion performed an exhaustive evaluation of the most popular CMS's in order to choose the best to build our business around. We chose DotNetNuke.
Built on top of the wonderful ASP.NET framework, it was technically superior, had a great community, a growing ecosystem, excellent leadership, had a great, extensible architecture, and was a very solid product. To this day, I feel strongly we made the right choice.
Since then, we've built the majority of our websites, intranets, and web applications on top of DNN. We offer a full range of services. Visit our services page to learn more.