Your selected regions are always listed on the right sidebar with the other selection options. There you can see the number of companies in the target group and the price.
The numbers after the names of the regions show the number of companies available in the region. If you have set specific options for the target group, those will be taken into account as well. E.g. if you have specified company size 1-15 employees, the result for Tallinn will show in brackets the number of companies with 1-15 employees.