Generally speaking Computer Aided Engineering (CAE) software industry is an ever changing industry including CAD industry. There are many well known products and big or small being taken over by other players in this industry. Some of the main players are:
There are also many other CAD packages with either smaller features or user bases or covering niche user applications. Please refer to Links for more information. There is also open-source CAD software packages.
According to Wikipedia there are three types of CAD software packages:
2D drafting systems e.g.:
Mid-range 3D solid feature modellers e.g.:
High-end 3D hybrid systems e.g.:
Bear in mind these classifications cannot be applied too strictly. At Computer Aided Engineering Centre Australia we can assist you choosing the right CAD software package for your Computer Aided Engineering (CAE) needs.