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Corruption Watch says Transparency International's rating of South Africa in the 2014 Corruption Perceptions Index indicated a significant problem, as the country scored 44 out of 100, where 0 indicates a perception that a country is highly corrupt.
It says of the 175 countries scored, South Africa ranked 67th.
Last year, South Africa scored 42 and was ranked 72nd out of 177.
Corruption Watch executive director, David Lewis said it would be a serious mistake to draw any comfort from the fact that South Africa had not slipped further in the index.
He said some key South African institutions showed characteristics of endemic corruption.
Lewis said one could think of the criminal justice institutions, and the impunity enjoyed by leading public sector and private sector individuals, with the continuing Nkandla fiasco the clearest example of impunity enjoyed by the politically powerful.
