To perform a geographic search, you must enter at least one field in addition to either a US state or Canadian province, or alternatively a Country name. From this screen you can also search in a County for any US state by specifying some selection criteria and checking By County. The STOP AT box allows you to specify the maximum number of records you want to display.
Radio buttons work in a way such that one and only one of the values is always selected.
Unless you are very sure of the database spelling, this is a very imprecise way to perform a query since so many spelling deviations can happen. For example, we did a search for lobster in Maine and got no results because the industry classifies itself as seafood , which we did not know at the time. Not every lobster business has lobster in their company name, but many apparently do. These imbedded character searches are much slower than keyword searches, but this gives you an alternative if you have not found what you want at the start. Also when you find a few companies and look at their detailed listings, you will find each has seafood as a keyword.