One way to orient oneself when coming from outside the US is to contact the Division for International Business at the Mayor’s Office for International Affairs located at the United Nations.

Other organizations that can help foreign entrepreneurs in New York are: VentureOutNY, WorldWide Investor Network andNY Tech Meetup International

There are some organizations attached to the Chambers of Commerce of specific countries that do work on behalf of entrepreneurs.

Another resource working with international economic development agencies to help their nationals enter the US startup/tech scene is TechResources.us