Use Dun & Bradstreet’s official D‑U‑N‑S Number Lookup. Choose “My Company” and enter the business details requested, such as its address or phone number. If you are checking another organization, choose “Other Company.”
If the search returns no result, check that the details match the business record—including any former address or phone number—and confirm you searched for the relevant business location. No match does not prove the business has never been assigned a number.
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Search D&B’s official lookup
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Open Dun & Bradstreet’s D‑U‑N‑S Number Lookup.
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Select “My Company” to look up your own organization. Choose “Other Company” if you are searching for a different business.
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Income and Expense Log Book - Bookkeeping Record Book/Tracker- Income And Expense Log Book: This Income and Expense Record Book（8.5" x 10.5"） is a necessary item for any small business owner or entrepreneur. It is an essential part of any business - helping you understand your overall earnings to determine if you are profitable.
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Enter the address or phone number the lookup requests. Use the details associated with the business record; if the first attempt fails, try a previous address or phone number.
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Review the result’s business name and location before relying on it. Make sure it identifies the organization and site for which you need the number.
Check that the result is for the right business location
A D‑U‑N‑S Number is a unique nine-digit identifier assigned by D&B to identify a distinct business location. A company with multiple locations or subsidiaries may therefore have more than one relevant number. D&B explains the identifier’s location properties in its D‑U‑N‑S Number documentation.
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If the lookup finds no match
Recheck the identifying details
Confirm the address and phone number are entered correctly, and try details the business used previously. D&B identifies changes to a company’s address or phone number as reasons it may not appear in a search. Its separate company-search documentation lists company name, registration number, telephone number, executive name, and street address as search criteria. Those fields may not all be available in the public D‑U‑N‑S lookup.
Request a number only after checking
Not every business has a D‑U‑N‑S Number. If a careful search still returns no match, use D&B’s request flow. D&B instructs applicants to check whether a number already exists before submitting a new request; the flow asks for the business name and ZIP code before continuing. The details requested can vary by country.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is a D‑U‑N‑S Number free?
D&B says obtaining and maintaining a D‑U‑N‑S Number is free and does not require purchasing a product or service. Optional paid services or expedited processing may be offered separately, and their availability or terms can change. See D&B’s free D‑U‑N‑S Number information for its current statement.
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