Malta, a member of the European Union has sold citizenship to more than 700 people, according to a report by the OECD. The Maltese government offers an "individual investor programme" which includes citizenship in return for a US$660,000 contribution to the country's development.
Cyprus sells citizenship to people willing to invest US$2.68 million in property on the island.
Caribbean islands, including Antigua, Barbuda, the Bahamas, Dominica, Grenada, St Lucia, St Kitts and Nevis are also included on the list compiled by the OECD.
The OECD warns golden passports could be sold to dangerous criminals and countries including Bahrain, Colombia, Malaysia, Mauritius, Montserrat, Panama, Qatar, Seychelles, Turks and Caicos Islands, United Arab Emirates and Vanuatu are also included on the list.
The think tank warns that the golden passports, or golden visas can be used to mislead the authorities about which tax jurisdiction applies to their income.
In Britain, the Tier 1 Investment Visa allows individuals to apply for residency in exchange for US$1.15 million investment, suggesting citizenship is already marketed as a commodity.