Dun & Bradstreet
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D-U-N-S Number

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?

Get 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.

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Look Up a
 D‑U‑N‑S

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.

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Update Info

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.

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Require a D-U-N-S

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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Government Contracts

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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