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

- ALSTOM
- AREVA
- BOSCH
- ENBW
- E.ON
- GE POWER
- HITACHI
- RWE
- SIEMENS
- STEAG
- VATTENFALL
Other

- 3M
- DESY
- DEUTSCHE BAHN
- HOCHTIEF
- MAX PLANCK INSTITUT
- RHEINMETALL