I think this subject has been on the forum before but basically here are the mail softwares :
- Inventor
- Solidworks
- Catia
These softwares are really expensive however. Maybe there are other softwares around, but I don't know. I'm using CATIA V5 so I can only speak about this. There are various modules inside it, but I think the basic version is 15'000euros. If you want the
complete version, I heard it was something like 1m€ but at this price you get a special technician from Dassault Systemes for you whenever you need help. There are so many modules and if you take the complete version you have to be a quite big team to have the use of all of them (or be the NASA or something).
These softwares are really expensive. Probably some users there can tell you about cheaper ones, but I think it will still cost something around 500euros for the cheapest !