Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Altair Inspire - Altair Inspire enables design engineers, product designers, and architects to create and investigate structurally efficient concepts quickly and easily.
Invision - Prototyping and collaboration for design teams
VectorEngineer - VectorEngineer is a CAD software system that you can use to create technical 3D drawings.
Sketch - Professional digital design for Mac.
ANSYS SpaceClaim - SpaceClaim 3D Modeling Software Solves Geometry Problems Fast.