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DUNS number explained: What it is, how to get one and why it matters

DUNS number explained: What it is, how to get one and why it matters

Bintang Lestada
Content writer at Aspire
August 5, 2026
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Summary

  • A DUNS number is a free, 9-digit business identifier by D&B that acts as your company's global commercial identifier
  • It links to your business credit file, used by enterprises, lenders, and platforms to verify you before contracts, payments, or credit approvals
  • You need one if you work with US enterprise clients, sell on Amazon/Apple, apply for trade credit, or expand internationally
  • Apply free at dnb.com. The standard processing takes up to 30 business days
  • For business outside the US, it's your entry credential into the US commercial market
  • Once you have it, pair it with Aspire to manage the cross-border payments and FX that come with operating globally
  • A D-U-N-S Number is different from an EIN or UEI. It doesn't replace your tax ID or government registration but complements them by verifying your business identity
  • While it helps establish business credibility and streamline vendor onboarding, a D-U-N-S number does not protect your business name or brand. If you're expanding globally, consider securing trademark protection separately

You’re about to close your biggest deal yet with an enterprise customer. The negotiations are done, pricing is approved, and you’re all set to sign the contract. Then comes an unexpected request from the procurement team: “Please share your DUNS number.”

If you don’t have one, the onboarding process can come to a halt. A D-U-N-S® number is a 9-digit identifier for your business. It helps you streamline vendor onboarding and explore new growth opportunities. In this blog, we’ll take you through the Dun and Bradstreet D-U-N-S number in detail.

What is a DUNS Number

The Data Universal Numbering System is a 9-digit identifier for businesses. Introduced by D&B in 1963, this number enables businesses like yours to establish credibility with suppliers, lenders, and potential partners.

With a DUN number, businesses worldwide can establish credibility and transparency in commercial transactions. Organizations use this number to link their key data, like legal name, physical address, and ownership structure, to a unique identifier within the D&B database. As per Dun & Bradstreet, the D&B Data Cloud contains over 580 million business records globally. It tracks more than 225 million unique corporate linkages to map parent firms, branches, and subsidiaries.

Why Does Your Business Need a DUNS Number

One essential key for businesses is to build trust, and a DUN number helps you establish exactly that. No matter what your goal is, be it onboarding new vendors, applying for finances, or expanding into new markets, the DUNS number helps you lay the foundation for success.

Below are the reasons why you must get a DUNS number:

1. Establish Credibility: The DUN number validates your company’s existence and operational history. Your customers, suppliers, investors, and financial institutions can place full confidence in you with this.

2. Build a Business Credit Profile: With a DUN & Bradstreet number, you can easily track your company’s credit-related information and payment history.

3. Simplify Vendor Onboarding: As the number easily verifies your business, it speeds up approvals and reduces administrative back-and-forth when getting new suppliers.

4. Supports Global Business Verification: The DUNS number is recognized worldwide. Thus, it quickly verifies your identity when dealing with international suppliers, customers, and partners.

5. Improve Risk Assessment: Linking key business data with a unique identifier helps you evaluate potential partners, monitor supplier risks, and make informed business decisions.

Who Needs a DUNS Number

Organizations across the globe benefit from a DUNS number. Whether you’re a startup or a well-established business, a DUNS number helps you verify your identity and build good business relationships.

Here are the businesses that must have a DUNS number:

1. Startups expanding internationally

2. eCommerce businesses selling on global platforms

3. Companies applying for government tenders

4. Limited liability companies

5. Non-profit organizations

6. Organizations seeking B2B trade credit or financing

7. Sole proprietorships operating under a DBA

How to Obtain a DUNS Number?

Getting a DUNS number is very simple. D&B assigns this number to businesses after verifying a few crucial pieces of company information. Here’s how to apply for DUNS number:

Step 1: Check if you already possess a DUNS number. For this, you can use the free D&B D-U-N-S Lookup tool on D&B’s official website.

Step 2: Apply online. Simply go to the DUNS registration page and choose the category that fits your business.

Step 3: Fill in business details, including your legal business name, physical address, company phone number, owner or official name, number of employees, estimated annual revenue, and your SIC or NAICS industry code.

Step 5: After the verification, you get your unique identifier number. This may take up to 30 business days. In case you need the number sooner, D&B provides an expedited option (typically within 8 business days) for a fee.

DUNS Number Vs EIN Vs UEI

As an entrepreneur, you may have come across several different identification numbers. While they may seem similar, each of them serves a different purpose and is issued by different bodies. The table below explains the difference between these three common identifiers.

[Table:1]

Is a D-U-N-S number the same as a federal tax ID number

A D-U-N-S® number and a federal tax ID number are issued by different organizations and serve different purposes.

  • A D-U-N-S number, issued by Dun & Bradstreet, verifies your business, builds its credit profile, and supports activities like supplier onboarding, procurement, and risk assessment.
  • Whereas an EIN is issued by the Internal Revenue Service (IRS) and is used for tax administration. With an EIN, businesses file taxes, hire employees, open business bank accounts, and meet other federal tax obligations.

Best Practices for Managing Your DUNS Number

Once you get a DUNS number, you must ensure that you actively maintain your DUNS profile to get the most value. An up-to-date profile helps improve your business’s credibility, streamline vendor onboarding, and ensure that lenders and suppliers have access to your current information.

To do this, you can follow these practices:

1. Update your business details, including new office location, contact, change in ownership structure, or business expansion.

2. Monitor your business credit profile. This enables you to identify any discrepancies, track payment performance, and understand how lenders and suppliers view your business.

3. Ensure that your business information is consistent across all official documents and platforms, including government registrations, tax records, bank accounts, websites, and supplier databases.

4. Regularly review vendor and supplier information.

5. Promptly address any errors in your DUNS profile.

The Bottom Line

As an entrepreneur, you have global ambitions, and securing a D-U-N-S number is one of the lowest-effort, highest-return steps to help you achieve your business goals. It is free, takes minutes to apply for, and anchors your global credit profile to help you build trusted corporate relationships. For businesses based in Asia-Pacific or anywhere else looking to enter the US market, this unique identifier instantly establishes your legitimacy in the eyes of local vendors, platforms, and financial networks.

Once you are verified and onboarded into global trade registries, you will need the operational financial infrastructure to handle transactions across borders without heavy FX fees. An all-in-one financial ecosystem like Aspire is designed precisely for this stage of growth. By leveraging your verified business profile alongside Aspire1, you can rapidly set up local USD accounts, manage remote team spending, and send payments to US vendors without international wire friction.

Also, keep in mind that while a D-U-N-S® number verifies your business identity, it does not protect your business name or brand. So, if you’re looking to establish a long-term presence in the US, be sure to register your trademark alongside your D-U-N-S profile. This protects your brand and minimizes potential legal challenges as your business scales.


FAQs

1. How much does a DUNS number cost?

It’s completely free if you apply from the official D&B website. However, if you need it quickly, D&B also offers an expedited option for a $229 fee.

2. Who is Dun & Bradstreet?

Dun & Bradstreet (D&B) is a global business data and analytics company that helps organizations make informed decisions by providing insights into business identity, creditworthiness, and financial risk. Founded in 1841, D&B maintains one of the world's largest commercial databases and assigns D-U-N-S Numbers to businesses worldwide.

2. How do I find my DUNS number?

You can look it up using D&B’s free D-U-N-S Lookup Tool at dnb.com. You can search by company name, address, or phone number.

3. Does a DUNS number expire?

No, once it is registered, it doesn’t expire.

4. Do I need multiple DUNS numbers if I have offices in multiple locations?

Yes. You will receive a unique DUNS number for each physical office location, even if they’re under the same legal entity.

5. Can a non-US company get a DUNS number?

Absolutely. A DUNS number is available to businesses in over 200 countries. The application process might vary by region, for which you can visit the regional D&B office or website.

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Sources
  1. https://www.dnb.com/en-us/
  2. https://www.dnb.com/duns-number/lookup.html
  3. https://www.irs.gov/businesses/employer-identification-number
  4. https://www.zawya.com/en/press-release/companies-news/dun-and-bradstreet-announces-over-500m-d-u-n-s-numbers-in-its-data-cloud-smvf4ym7
This blog is for general information only and does not constitute financial, legal, tax, or professional advice. Aspire’s services are subject to the terms outlined in our 'Terms of Service' and 'Pricing' pages. We make no guarantees as to the accuracy, completeness, or timeliness of the content, and past results do not indicate future performance. Always consult a qualified professional before acting on any information provided.
Bintang Lestada
is a seasoned writer specialising in fintech, agtech, politics, and pop culture. With a writing history at VICE ASIA, Letterboxd, Whiteboard Journal and other reputable organisations, Bintang leverages their broad range of experiences to resources that educate audiences, build trust, and support business growth.
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