Simpson Communications work with global corporations and their national subsidiaries, mainly in the energy and maritime sectors. This site contains some of the solutions that have been developed for:

• A. P. Moller-Maersk
• APM Terminals International B.V.
• BLCP Power
• British Energy
• Central Networks
• Coolkeeragh ESB
• Csepeli Erômû Rt.
• E.ON
• EDF Energy
• GE Energy
• International Power – First Hydro
• National Grid
• P.T. Jawa Power
• RWE npower
• ScottishPower
• SSE
• The Maersk Company Limited