Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Brandpad - Host your brand guidelines and assets in the cloud
Sketch - Professional digital design for Mac.
Brandfolder - One link to all your marketing assets. Brandfolder is your convenient source to visually organize, quickly find and easily share all your final brand assets.
Invision - Prototyping and collaboration for design teams
Corebook.io - An online brand guidelines platform for the world's most brilliant brands and their creators.