Plant construction
- ABB
- ANDRITZ
- ARVOS
- ATLAS COPCO
- BABCOCK
- BALCKE DÜRR
- BILFINGER
- JOHN ZINK
- PAUL WURTH
- PRIMEMETALS
- THYSSENKRUPP INDUSTRIAL SOLUTIONS
Diesel engine manufacturing
- CATERPILLAR
- MAN DIESEL & TURBO
- MTU
- WÄRTSILÄ
Shipbuilding
- AIDA CRUISES
- HAPAG LLOYD
- MEYER WERFT
- MV WERFTEN
- ROLLS ROYCE MARINE
- SCANDLINES
- STX
- THYSSENKRUPP MARINE SYSTEMS
Engineering
- ARCELOR MITTAL
- AURUBIS
- DEGUSSA
- SALZGITTER
- THYSSENKRUPP
- VOEST-ALPINE
Chemical industry
- BASF
- BAYER
- DOW
- DUPONT
- EVONIK
- ICL
- LINDE
- PHOSAGRO
- WACKER
Petrochemical Industry
- AIR LIQUIDE
- BP
- DEA
- SASOL
- SHELL
- TOTAL
Power plant construction
- VATTENFALL
- RWE
- E.ON
- ENBW
- ALSTOM
- GE POWER
- SIEMENS
- STEAG
- HITACHI
- AREVA
- BOSCH
Other
- 3M
- DESY
- DEUTSCHE BAHN
- HOCHTIEF
- MAX PLANCK INSTITUT
- RHEINMETALL