ActiveState - ActiveState offers a PaaS-based infrastructure that enables developers to build and deploy apps to the cloud.
Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Nitrous - Nitrous is a web-based development platform that allows developers to collaborate on their projects in real-time, deploy to production servers with one-click, and to snapshot their projects quickly and easily.
ClassicPress - The WordPress fork. No Gutenberg. Great future!
Bannerboo.com - Bannerboo is the world's easiest online banner maker.
Textpattern - Textpattern is an elegant content management system that is free, open source software.