in a last row insert an expression:
=sum(iif(Fields!IsOrganization.Value = "Profit",1,0) + iif(Fields!IsOrganization.Value = "NonProfit",1,0) + iif(Fields!IsOrganization.Value = "NotApplicable",1,0))
It will count all rows with "Profit", "NonProfit" and "NotApplicable" text in IsOrganization field.