PI Integrated Systems has been involved in the CAD business for the past 15 years.

Based in Houston, Texas, we have delivered our AutoCAD©-based FlexCAD solutions to owner/operators (O/O's) of petrochemical facilities/refineries and to the Engineering Procurement & Construction companies (EPC's) that design, build, & upgrade plant assets. We are also an authorized developer and an independent service vendor for AutoCAD.

Our 3500 plus FlexCAD customers range from major O/O's and EPC's to many small- and intermediate-sized companies. Customers especially benefit from FlexCAD’s trademark FastTrack Design productivity for traditional 2D drawings, as well as our innovative 3D extensions for modeling.

We like to think of ourselves as user friendly, budget friendly, and project friendly. Most designers, already familiar with AutoCAD, are productive with our products within 24 hours.

VISION: PI’s vision is to be the leading provider of high quality, easy to use and highly affordable industrial design products to industrial facility operators and their supply chains