Linear - Streamlined issue tracking for software teams
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
BugHerd - BugHerd: The Website Feedback Tool for Agencies
Moqups - The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project
Distiller - Distiller's hosted continuous integration platform takes the pain out of mobile development through automated build, test, and deployment of your iOS apps.
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.