Engineering encompasses an ever-widening spectrum of specialisation and practical work. The success of any engineering project depends heavily on the synergies among different disciplines. Among major fields of engineering practices in Hong Kong, the HKIE has established the following disciplines:

• Aircraft
• Biomedical
• Building
• Building Services
• Chemical
• Civil
• Control, Automation & Instrumentation
• Electrical
• Electronics
• Energy
• Environmental
• Fire
• Gas
• Geotechnical
• Information
• Logistics & Transportation
• Manufacturing & Industrial
• Marine & Naval Architecture
• Materials
• Mechanical
• Structural