Paterson, NJ is the example for this page, but the same types of agencies and organizations will be found throughout the US - sometimes with different titles.
There are public access versions to these multiple listing services. Search for commercial/industrial rentals unless you have a specific price in mind, You also need to pay attention to the zoning. For example, you might need to apply for a zoning variance to set up a school in a building that had been previously used as a factory.