- The Republic of Singapore, or simply Singapore, is a sovereign city-state located in Southeast Asia. Singapore is a global financial, trade and transportation hub with numerous rankings such as the most technological country, the best city for international meetings, the city with the best investment potential, the third most competitive country, the third largest financial center and many other nominations. The country has also been recognized as a tax haven. https://www.confiduss.com/en/info/blog/article/singapore-business-overview/