AEC Design Group - http://www.cadpipe.com/
Develops and distributes AutoCAD-based software for the process plant and building services industries worldwide. |
http://www.devpipe.com.br/ - http://www.devpipe.com.br/
An AutoCAD application for generating the intersection profiles between pipe elements of various shapes. |
PRO-CAD Software Ltd. - http://www.procad-software.com/
Developers of 2D Designer and 3D Smart piping and electrical drafting and design software add-on programs for AutoCAD. |
Satish Lele - http://business.vsnl.com/nelcon/
A collection of AutoCAD add-on programs for piping in 2D and 3D, and other AutoLISP routines. |
Strucsoft Inc. - http://www.strucsoft.ca/
Plant design software for mechanical, structural, instrumentation and electrical design. |