- ABB Automation products GmbH

- ABB Process Industry GmbH

- ABB Danemark

- ABB Finland

- ABB Instrumentation Spa

- ABB Process Analytics

- ABB Hongrie

- ABB France

- Air Liquide

- Alstom Power

- Amec Spie

- ARKEMA

- Autochim

- BASF

- BAYER

- BP Oil

- BP Chemical

- CEGELEC

- Celanese Chemical

- DOW Chemical

- Elster Instromet

- EMERSON Process Management GmbH

- EMERSON Process Management Hongrie

- EMERSON Process Management SP ZOO

- EMERSON Process Management SRO

- EMERSON Process Management France

- EXXON Chemicals

- FLUXYS

- GASUNIE NV

- GDF SUEZ ( GRT GAZ ,STORENGY, ELENGY )

- INEO

- INEOS

- INTERGAS SP ZOO

- LYONDELLBASEL

- MECI

- NAPHTACHIMIE

- NESTE OIL

- QATAR GAS

- SECAUTO

- SHELL

- SIEMENS BELGIQUE

- SIEMENS AG

- SNEF

- SPIE

- SRA Instruments

- STATOIL

- TIGF

- TOTAL FRANCE

- TOTAL BELGIQUE