General engineering:
- Henry Walker
- Tubemakers
- Chapman Combustion
- Nestle Confectionery
- Ingersoll-Rand
- Hunwick Consultants
- Hatch
- Envirotech
- Aquatec Maxcon
- Connell Hatch
- ABB Power Generation
- OutoKumpu Lurgi
- James Hardie Industries
- Leighton Contractors
- Baker Hughes
- Weir Engineering
- Ecolaire
- Abigroup
- Burns & Roe Worley
- Perfab Engineering
- Reed Construction
- Eimco
- Metso Minerals
- Dorr Oliver
- BlueScope Steel Ltd (Port Kembla)
- BHP Billiton - Port Kembla coal washeries
- Parke Davis/Warner Lambert
Pressure vessels:
- Alfa Laval
- Caltex
- Morris Scientific
- Toshiba International
- Hitachi
- Perfab Engineering
- Maxitherm Boilers
- Tetra Pac
- J.L.Lennard
- Olaer Fawcett Christie
- Thales
- Metso MInierals
- Mitsui
- Fongs
- Winston Industries
- Outokumpu
- Tyco
- James Hardie Research
- Plenty Uniquip
