Brand.ai - Create a style guide & integrate with Sketch, Slack, & Gulp
Anima App - Design, get feedback, convert to code, publish, iterate.
Frontify Workspace - The overall tool for creative & design collaboration: - upload, manage & share assets
Sketch Repo - Collection of resources for anyone who uses Sketch
MediaKits - The easiest way to create a media kit
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.