- Advertising and Marketing
- Associations and Bodies
- Below Rail and Track Grinding
- Buildings and Property
- Calibrations/Tooling
- Condition Monitoring and Digitalisation
- Electrical and Electrification
- Engineering
- Engineering, Procurement and Construction
- Environment Management
- Equipment Supplies
- Finance
- Freight/Heavy Haul Operations
- General Materials and Product Supplies
- Health & Wellbeing
- Human Resource Services
- Infrastructure
- Infrastructure Engineering
- Infrastructure Engineering Services
- Insurance
- IT Services and Supply
- Legal and Compliance
- Lubricants
- Machinery, Plant and Equipment
- Marketing and Promotion
- Network Maintenance
- Network Operations
- Paint Supply
- Passenger Operations
- Plant and Equipment Services
- Ports
- Professional Services - Consultancy
- Rail Operators and Network Managers
- Recruitment and Workforce
- Recyclables
- Risk
- Rolling Stock Engineering Services
- Rollingstock Manufacturing and Maintenance
- Rollingstock Supply/Leasing
- Safety
- Signalling
- Signalling Services
- Technology and IT
- Telecommunications Services
- Trackside and Overhead Infrastructure
- Trade Events
- Training and Certification
- Wholesale/Trade
