Dun & Bradstreet D‑U‑N‑S® Number Lookup

Look up a partner's company or find your company's D‑U‑N‑S Number.

Company D‑U‑N‑S Number Search

Search By Company Name

Find a UK or Ireland company's D-U-N-S Number by entering its name and location.

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Search by Company Registration Number

Find a UK company's D-U-N-S Number by entering the full Company Registration Number. Please ensure you include any leading zeros or any prefixed letter(s).

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If your company is based outside of the UK or Ireland, please use our International D‑U‑N‑S FAQ page to locate your local office.