President of the BNAO
- Cabinet of the President
- Audit Activity Development Directorate
- Audit Methodology Department
- Audit Planning and Analysis Department
- Public Relations, International Relations and Protocol Directorate
- Public Relations and Protocol Department
- International Relations Department
- Administrative Services Directorate
- Archive and Digitalisation Department
- General Office Services and Registry Department
- Financial and Property Management Directorate
- Financial and Accounting Department
- Property Management Department
- Legal Services Directorate
- Legal Department
- Legal Support to Audit Activity Department
- Internal Audit Unit
- Human Resources Unit
- Security Directorate
- Internal Organisational Security Department
- Cybersecurity Department
- Information Services Department
- Fight Against Corruption, Bribery and Money Laundering Unit