Thanks for the feedback guys

I probably didn't word the OP well enough.
I guess I was thinking about reputation or US cities synonomous with business.
For example, as a foreigner, if I think of entertainment I think Hollywood. If I think of gay living I think of San Francisco. If i think of Jazz I think of New Orleans. If I think of hi tech, I think of silicon valley, etc etc. So I was wondering, when americans think of business, what cities do they think of?
I would think of New York, Boston, but are there any other main ones which fly under the radar or rank close to New York?
Most countries have places with business reputation. Germany has Frankfurt, Brasil has Sao Paulo, Australia has Sydney.
I was curious on America's main business cities, or what posters here thought they would be.