The purpose of this study is to investigate which types of lobbying are regulated in the legislative institutions in Sweden, Great Britain, and the European Union. The study aims to investigate whether there is any connection between the perceived corruption in the country and how regulated lobbying is. This is done by analysing documents, laws, and norms and afterward comparing the different legislations. The result of this essay is that lobbying in the European Union is regulated by laws and that lobbying in Sweden and Great Britain mostly are regulated by norms. There is also a connection between the level of perceived corruption and the regulation of lobbying. The average European attitude towards perceived corruption is higher in the EU compared to the United Kingdom and Sweden.