It was among 10 U.S. cities to make the list. See the list here.
Dayton is the sixth largest city in Ohio with a population of 142,000 residents in the city. The region of Dayton-Springfield-Greenville has a population of 1,080,000, making it the fourth largest Ohio metro area.
Dayton is a hub for manufacturing and is a central location for manufacturers, suppliers and shippers. The area is also home is research and development, especially aeronautical and astronautical engineering.