2018
The High-level Conference „The Role of the Supreme Audit Institutions in Enhancing Accountability, Transparency and Integrity in the Public Sector”, organised by the Bulgarian National Audit Office under the Bulgarian Presidency of the Council of the European Union took place on 15 May 2018 in Sofia

2017
Conference "Financial Instruments of the European Union – Lessons learnt and Perspectives" - a joint initiative of the European Court of Auditors and the Bulgarian National Audit Office

2015
Сonference on the role of external audit for effective public sector management   to mark the 135^th anniversary of its establishment and 20 years of the restoration of the BNAO

Round table „Youth Employment – Challenges аnd Solutions“ - a joint initiative of the European Court of Auditors and the Bulgarian National Audit Office

Annual meeting of the INTOSAI Working Group on Key National Indicators

2014 
Meeting of SAIs participating in the co-ordinated audit on Prevention and response  to forest  fires

2013  
-   V meeting of the Working Group on the Audit of Funds Allocated to Disasters and Catastrophes
-    Meeting of the participants in WG on Structural Funds V of the EU Contact Committee

2012  
-   Training event on performance audit with a lecturer from the Belgian Court of Audit
-    Seminar on the ISSAIs on compliance audit and financial audit with lecturers from the INTOSAI Professional Standards Committee
-    Seminar on ISSAIs on performance audit with the Swedish National Audit Office

2011
Meeting of the Liaison Officers of the EU SAIs

2010
Seminar on performance audit with the Office of the Auditor General of Norway  

2009
7th meeting of the EUROSAI Working Group on Environmental Auditing

2008
Seminar for exchange of experience with the Macedonian State Audit Office