Transparency International estimates that corruption affects competition, hinders the performance of companies, hinders economic development, generates undue costs for people and companies alike, and for a healthy business environment. Efforts are needed from both the public sector and the private one in order to prevent corruption in all its forms and to enable profitable and stable business development. The latest edition of the Global Corruption Barometer shows that 49% of respondents perceive the business environment in Romania as corrupt or extremely corrupt and 64% of Romanians believe that corruption has increased in the last two years. The paper sought to determine how the companies with the largest financial resources, under the authority or coordination of the Ministry of Energy (MOE), Ministry of Economy, Trade and Relations with Business (METRB), Ministry of Transport (MT), comply with the requirements of the National Anticorruption strategy and transparency in terms of structure on increasing transparency and standardizing public information display, and also for the implementation of internal control standards management. Also, the aim of the paper was to make an analysis of what the National Anti-Corruption Strategy has meant for the 2012-2015 period in terms of results against the objectives set by the National Anti-Corruption Strategy for 2016-2020.