ETank, Inc.
- Software for calculating steel and aluminium storage tanks according to US standards, and management tools for plant equipment maintenance.
- http://www.etank.com/

Camatic, Ltd.
- Software for plant and ship design and engineering, as well as for managing the maintenance during lifetime.
- http://www.cadmatic.com/

Cymap Building Services Software
- Design software for HVAC, lighting and electrical design. Covers CIBSE/DIN/ASHRAE design standards, available in English, German, Hungarian
- http://www.cymap.com

Rebis Industrial Workgroup Software
- Offers products for plant design, as well as systems to manage the full operational lifecycle of these facilities, including complete suite of integrated applications for piping, structural, process and instrumentation design and analysis, pipe stress and
- http://www.rebis.com

Cea Technology
- Makers of the Plant-4D plant design application for AutoCAD and Microstation, and related software modules.
- http://www.cea-int.com/

Alias ltd.
- Offers the Isogen software for plant design, as well as related modules for isometric presentation, data conversion, and 3D modelling.
- http://www.alias.ltd.uk/