Headquarters of several multinational corporations.

A variety of international financial services, notably in finance, insurance, real estate, banking, accountancy, and marketing.The following are the criterias used mainly by those groups out there in classifying cities around the world in global city ranking ‘Global city’ is different with ‘Mega city’ as the latter defines a city that houses very massive population and is not necessarily a global economic point. Global city status is considered to be beneficial and desired, and because of this, many groups have tried to classify and rank which cities are seen as world cities or non-world cities. The concept comes from geography and urban studies and rests on the idea that globalization can be understood as largely created, facilitated, and enacted in strategic geographic locales according to a hierarchy of importance to the operation of the global system of finance and trade. Basically, a global city is a well-known international city with great urban surrounding and a major commercial hub with high economy that impacts not only its country but also the world.

A global city, also called world city or sometimes alpha city or world center, is a city generally considered to be an important node in the global economic system.

Alpha global city