About the D‑U‑N‑S Number

Find Answers to Your D-U-N-S Number Questions Here

What Is a D-U-N-S Number and Why Do I Need It?

The Dun & Bradstreet D-U-N-S® Number is a unique nine-digit identifier for businesses that is associated with a business’s Live Business Identity which may help evaluate potential partners, seek new contracts, apply for loans, and so much more.

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How do I get, find, and manage a D-U-N-S Number?

How do I Get a
D-U-N-S Number? Getting a D-U-N-S Number is free, so gather your basic business information and get started here. Learn More
How Do I Look Up a
D-U-N-S Number? Look up your own D-U-N-S Number or the number of a company you want to do business with. Learn More
How Do I Update My Company’s Business Information? If you’re a U.S.-based, non-public company, you can view and request updates to your company’s business information for free through the D-U-N-S Manager. Learn More
Do Companies Require a D-U-N-S Number?

Many businesses will use your D-U-N-S Number to access your company’s Dun & Bradstreet credit profile to help evaluate you as a partner.

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Do I Need a D-U-N-S Number to Work on Government Contracts?

A D-U-N-S Number may no longer be required for government contracts, but there are still many benefits for your business.

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