The Harvard Business School in combination with national Authorities and Statistics offers a very interesting side called Cluster Mapping (www.clustermapping.us). This side gives an overview to get a better impression where the top regions are. For example the 5st biggest industry by employees is „Financial Services“ mainly positioned New York, California, Texas and Florida.
Transport and Logistics is mainly in Texas, California and Illinois. If we take a look at Industrie Production there is a after California and Texas Ohio an important location. The „Automotive Cluster“ is mainly located in Michigan, Ohio and Indiana.