What a DUNS number is
DUNS (D-U-N-S Number) is a unique nine-digit business identifier assigned by Dun & Bradstreet. In effect it is a "passport" for your company in the business world: banks, suppliers, marketplaces and partners recognize you by it.
The key difference from the owner's personal data is that the DUNS belongs to the company itself. It is tied to the business, not the person, which is exactly why a separate business credit history is built on it — one that is not mixed with the founder's personal credit.
On its own the number does not "solve" anything — it simply opens the door wherever a D&B identifier is required as a ticket in. And there are more such places than you would think.
Why you need it: real scenarios
People rarely get a DUNS "just in case." There is usually a specific task behind it. Here are the most common ones.
Business credit. Dun & Bradstreet maintains a business credit profile and a payment score. For a company to build its own credit history — separately from the owner — it needs a DUNS. For a new company this is the foundation: without it, there is simply nowhere to accumulate business credit.
Programs where a DUNS is required. The classic example is the Apple Developer Program: for an organization developer account, Apple requires a DUNS number. The same applies to organization accounts on other platforms and app stores.
Suppliers and large counterparties. Big companies often check you against the D&B database during supplier onboarding and ask for the identifier. No DUNS — and supplier registration stalls.
Tenders, grants, industry requirements. Some programs, grants and certain industry registries (for example, registration of food producers) use the DUNS as an identifier. It is best to confirm the requirement in advance — in some places it is still needed, in others it has already been replaced.
Important: federal contracts now use the UEI, not DUNS
This is the main confusion of recent years. The DUNS used to be required to work with the US government (federal procurement and grants). That changed: since April 4, 2022, SAM.gov uses its own identifier — the Unique Entity ID (UEI), twelve characters — and the DUNS is no longer used there.
The takeaway is simple: if the task is federal contracts or grants, you need a UEI in SAM.gov, not a DUNS. But that does not mean the DUNS was "cancelled." For business credit, working with vendors and programs such as the Apple Developer Program it is still needed. These are two different identifiers for two different jobs — and they get confused constantly.
A short rule. US government (SAM.gov) → UEI. Business credit, vendors, Apple / app stores, private counterparties → DUNS. Before you apply, it is worth understanding exactly what is being asked of you.
Who should get one right away
There are situations where it is better to get a DUNS ahead of time, rather than waiting until it is needed "yesterday."
A new company that will build business credit. The sooner the DUNS and the first records with suppliers appear, the sooner the company's credit history starts to build. So it makes sense to get a DUNS right at the start of the company, while gathering its documents.
Developers and sellers. If an Apple organization account or an organization account on another platform is ahead, the DUNS will be needed at the registration stage — and it is better to already have it.
Those a counterparty is asking. If a large client or supplier has explicitly requested a DUNS, there is no point in waiting: without it they will not add you to their system.
What you need to apply
A basic set of company data is collected for a DUNS application:
- a description of the business — what the company does;
- a US phone number, if any;
- the company website, if any;
- a business email;
- the number of employees.
The set is simple, but the details matter: the data must match how the company is registered, otherwise discrepancies appear in the D&B profile that later get in the way of the credit profile.
What matters is getting the number to work for you
A DUNS is not an end in itself. It delivers value when it is correctly tied to your company and starts doing the job: building a credit profile, passing supplier checks, opening the programs you need. So what matters is not just "getting a number" but getting it with correct data and no duplicates — otherwise the D&B profile comes out "patchy" and gets in the way instead of helping.
For a company with a foreign owner this is felt more. Without a US phone and website there are more clarifications, and any inaccuracy in the data pushes issuance back and then lingers in the credit profile. So the key here is a carefully completed application the first time, fit to your task. That is exactly the part convenient to hand to us.
Need a DUNS number and would rather not deal with the application and D&B checks? → we'll handle it for you
We'll gather the data, carefully file the application and see it through to your DUNS number — no duplicates or redos, including for companies with a foreign owner.
Where people usually trip up
The mistakes around a DUNS are repetitive. People confuse the DUNS and the UEI — and register in the wrong place. They get a DUNS "for government contracts," even though that has long been the UEI. They end up with several DUNS numbers for one company because of repeat applications — and then deal with duplicates. Or they enter data that does not match the company's registration, which leaves the D&B credit profile "patchy."
A separate trap is an abandoned profile. The DUNS is obtained, but the company is never "listed" with suppliers and no payment history is built — so the number exists, yet there is still no business credit on it. A DUNS does not create credit by itself; it only opens the ability to build it.
The bottom line
A DUNS number is a business identifier from Dun & Bradstreet that underpins business credit, working with vendors and access to programs such as the Apple Developer Program. For federal contracts it is no longer needed — that is the UEI. The main thing is not to confuse the task and to get the right identifier, with correct data and no duplicates.
The value of a DUNS is not in the number itself but in the tasks it unlocks: business credit, supplier trust, access to programs. And it only comes through with a careful application and ongoing work on the credit profile. That is where a company's business reputation in numbers begins.
Frequently asked questions
What is a DUNS number and why do I need one?
A DUNS is a unique nine-digit business identifier from Dun & Bradstreet. You need it to build business credit history separately from the owner, pass counterparty checks and register with programs and suppliers that require the number.
Is a DUNS number needed for US government contracts?
Not anymore. Since April 4, 2022, US federal procurement and grants in SAM.gov use the Unique Entity ID (UEI), not the DUNS. The DUNS is still needed for business credit, working with vendors and programs such as the Apple Developer Program.
How long does it take to get a DUNS number?
Usually from a few days to a few weeks, depending on Dun & Bradstreet checks; for a company with a foreign owner it is often longer. What matters is not speed but a carefully filed application the first time, with no duplicates or errors — which we take on.
Can a foreign-owned company get a DUNS number?
Yes. A US company gets a DUNS regardless of the owner nationality. In practice the process is slower for a non-resident: without a US phone and website there are more clarifications, and errors in the data delay issuance.
We'll get your DUNS number for you
We'll gather and carefully file the application with the right data and see it through to your DUNS number — no duplicates and no redos, including for companies with a foreign owner.
Sources
- Dun & Bradstreet — purpose and how to get a D-U-N-S Number; not required by law.
- GSA / SAM.gov — US federal procurement and grants moved to the Unique Entity ID (UEI) on April 4, 2022, replacing the DUNS.
- Apple Developer Program — DUNS number requirement for an organization account.