TrackDuck - Visual feedback for web design and development.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
zipBoard - ZipBoard is a web-based visual bug tracking & issue tracking tool that helps developers, testers and project managers collaborate during website and elearning development.
Moqups - The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.