San Francisco is one of the biggest cities in the US. With that it has many sectors tied to information technology. Huge corporations, rich and exclusive villas and progressive information companies are present. San Francisco is a technologically advanced city. It also houses one of the biggest ports in the world, which in turn means that it is a vivid trade centre and transitional area. Various industries, from technology, trade and entertainment are what the city prides itself.
Business centre of Arizona state is surely the capital Phoenix. This great city hosts many technological companies and manufacturers. All those are making up to about 20% of the city budget and economy of the city is surely on the rise because of them.
The third largest city in California, San Jose is also the largest city in the Silicon Valley and the oldest one in the state of California.