A D &B number is a unique 9-digit business identifier issued by Dun & Bradstreet. It’s also commonly called a D‑U‑N‑S number , and it helps identify a specific company in credit, supplier, and business databases.

Quick Scoop

  • What it is: A number assigned to a business, not a person.
  • What it’s for: Business identification, credit reporting, and verifying companies in commercial transactions.
  • Why it matters: Many lenders, vendors, and government or enterprise systems use it to confirm a business’s identity.

In plain English

Think of it like a business fingerprint. If two companies have similar names, the D&B number helps systems tell them apart.

Example

If a supplier wants to check your company’s credit profile or confirm your legal business identity, they may ask for your D&B number.

Bottom line

If someone says “D&B number,” they usually mean the D-U-N-S number : a unique identifier for a business issued by Dun & Bradstreet.

TL;DR: A D &B number is a 9-digit Dun & Bradstreet business ID used to identify and verify companies.