Dun & Bradstreet only report the estimated sales if you submit that info to them. They don't do research. My company has '0' sales listed also because I choose not to give them financial info to publicize. http://www.allbusiness.com/companyprofile/Apex_Engineering_International_L_L_C/6AC6D3DCEAF93C425CDEE57259EE184F-1.html