Invision - Prototyping and collaboration for design teams
Looka - Make a logo you’ll love with Looka Logo Maker.
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
LogoTypeMaker - Generate unique brand logos in seconds. Free custom logo creator tool will help you make company logos and professional brand identity graphics.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
Zuuvi - Zuuvi is a platform that enables you to create digital advertisements at scale.