Free business tool

Nederlands

Free DUNS number lookup.

Find the official D‑U‑N‑S number for a Dutch or international company. No paid report, account, or impossible country list.

Search first. Many companies already have a number without knowing it.

IWD securely forwards your search to Dun & Bradstreet and doesn’t store it in a database.

01 · Uses

What is a DUNS number used for?

Dun & Bradstreet assigns the nine-digit number to a specific legal entity or location. Platforms use it to check whether a company’s name, address and legal status belong together.

02 · Request

No result? Don’t request a duplicate yet.

Check the exact registry name and physical address first. Still no result? Apple and Google’s organization flows can start a new D&B registration. Standard requests may be free; expedited service and local D&B products are separate.

How to get a DUNS number →

03 · Verification

The legal name and address must match.

Most failures happen after the request. A trade name at Apple, an old D&B address or the wrong Google location can trigger rejection even when all nine digits are valid. Copy the legal name and address from the result.

Fix DUNS name or address →

04 · Definition

What is DUNS?

DUNS means Data Universal Numbering System. It isn’t a Dutch KvK number, VAT ID, LEI, EIN or EORI. D&B maintains the register, and one group can have several numbers for separate entities or locations.

Read the full explanation →

05 · FAQ

Common questions

Is a DUNS number free?

Lookup is free here. A standard request may be free through D&B or a platform flow. Local reports and expedited processing may cost money.

How long does a request take?

Apple says to allow up to five business days through its flow. Google advises allowing up to 30 days. Platform synchronization can take additional time.

Can one company have several numbers?

Yes. Separate legal entities and locations can each have their own DUNS number. Choose the record whose name and address match the account or facility being verified.

Do I need DUNS for SAM.gov?

No. The U.S. government replaced DUNS with SAM.gov’s Unique Entity ID (UEI) on 4 April 2022.

06 · Method

Source, method and privacy

IWD built this readable interface to D&B’s search flow with D&B’s permission. IWD doesn’t issue DUNS numbers and isn’t part of Dun & Bradstreet. Search fields are used only to query D&B; results are a point-in-time view and D&B remains the source of record.

Content reviewed 13 July 2026.

Official sources