The call was made in a Friday op-ed published in newspaper Dagens Nyheter.
The chair of Transparency International Sweden, Ulla Andrén, tells Radio Sweden that corruption scandals involving large companies such as Telia have also spread to politicians and people working at municipal councils.
"Sweden needs a national plan against corruption because we have not seen that corruption is diminishing. This plan would analyse the risk for corruption in different sectors of society and could propose measures and actions to be taken. This is also about the public sector which needs to take action," she said.
The Stockholm-based telecom company Telia has been ordered to pay approximately SEK 8 billion in fines to settle a corruption case in which the firm paid bribes between 2007 and 2010 to government officials in Uzbekistan.