Q. What is a DUNS Number?


A Data Universal Numbering System (DUNS) Number is a unique, location-specific identifier that allows a company to accurately gauge and communicate its credit worthiness. A unique nine-digit identification number is assigned for each physical location of a business. DUNS Number assignment is free for all businesses and is also required to register with the federal government for contracts or grants. The number is assigned by Dun & Bradstreet.

McDermott Library does not have access to any of the D&B online resources. However, some DUNS numbers are provided in Factiva.

From the library's homepage, click the Databases tab, then the letter F to navigate to Factiva.

On Factiva's homepage, hover your mouse over “Companies/Markets” in the top menu, then click on “Company.”



In the next screen, type the company name or ticker symbol into the “Smart Lookup” search box. The database will suggest names as you type. Click the desired corporation.


The DUNS number can be found on the resulting page, below the contact information and ownership type at the bottom of the screen.




  • Last Updated Jan 26, 2018
  • Views 13
  • Answered By Matt Young

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