According to the Global Software Top 100 (2011 edition), 6 CAD/CAE/PLM software companies are among the top 100.
They are Dassault Systèmes, Autodesk, PTC, Siemens (UGS), Mentor Graphics and ANSYS.
Dassault and Siemens have the complete ecosystem: CAD-CAM-CAE-PLM. Autodesk and PTC reply more on CAD. Mentor Graphics has a limited presence beyond in the electronics industry. ANSYS is an interesting company focusing only CAE.
Compared with the rank of the previous year (2010), all these 6 companies climbed some potions varying from 1 to 4. This indicates the demands for CAD/CAE/PLM are getting stronger. The following table illustrates the ranking of these 6 companies in the last three years.
| Company | 2011 Position | 2010 Position | 2009 Position |
| Dassault Systems | 19 | 22 | 17 |
| Autodesk | 22 | 25 | 16 |
| Siemens | 49 | 50 | 40 |
| Mentor Graphics | 77 | 80 | 66 |
| ANSYS | 92 | 96 | 75 |
We will analyze these companies, as well as other CAD/CAE/PLM software companies in other articles.… Read the rest “The Big 6 in CAD/CAE/PLM software industry (2011)”