Frontify Workspace - The overall tool for creative & design collaboration: - upload, manage & share assets
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Brand.ai - Create a style guide & integrate with Sketch, Slack, & Gulp
Sketch - Professional digital design for Mac.
Looka - Make a logo you’ll love with Looka Logo Maker.
Invision - Prototyping and collaboration for design teams