RBA's Core Disciplines:
| Biologists | Geologists |
| Blast Analysis Engineers | Geophysicists |
| CADD Specialists | GIS Specialist |
| Chemical Engineers | Grade T5 WTP Operators |
| Chemists | Hazardous Waste Removal Specialst |
| Civil Engineers | Health & Safety Specialists / Officers |
| Confined Space Entry Specialists | Hydrogeologists |
| Construction Inspectors | Information Technology / Systems: |
| Construction Managers | - Planners |
| Construction Superintendents | - Architects |
| Electrical Engineers | - Analysts |
| Environmental Assessors | - Programmers |
| Environmental Engineers | Instrumentation & Control Engineers |
| Environmental Scientists | CQC Managers |
| Equipment Operators | Petroleum Pipefitters |
| General Contractors | Remediation Superintendents |
| General Engineering Contractors | Structural Engineers |
| Geographers | Well Drilling Contractors (Site Investigation) |