How to Get a DUNS Number for Your Business
What a DUNS Number Is
The Data Universal Numbering System, or DUNS, was created by Dun and Bradstreet in 1963 to uniquely identify businesses worldwide. Over 500 million businesses across more than 200 countries have DUNS numbers in the D&B database. The number itself is a simple nine-digit identifier, similar in concept to how your Social Security number identifies you as an individual. Once assigned, your DUNS number is permanent. It does not expire, does not need to be renewed, and stays with your business for its entire lifetime.
Your DUNS number does more than just identify your business. It is the key that links all of D&B's data about your company: your payment history with vendors and lenders, your company size and age, public records like liens and judgments, and the contact information and industry classification in your business profile. Without a DUNS number, D&B cannot create a file for your business, and without a file, no PAYDEX score or D&B credit report will ever exist for your company.
Many government agencies, large corporations, and grant programs require a DUNS number as part of their application processes. The federal government requires a DUNS number (or its successor, the Unique Entity Identifier through SAM.gov) for all entities applying for federal grants, contracts, or cooperative agreements. Companies like Apple, Walmart, and Amazon often require DUNS numbers from suppliers as part of their vendor onboarding process. Getting your number early, even before you need it, avoids delays when these opportunities arise.
Step-by-Step Application Process
Before applying for a new number, search the D&B database at dnb.com to see if your business already has one. D&B automatically creates records for businesses they discover through public data sources like state business filings, court records, and utility connections. Many businesses have DUNS numbers they did not know about. Search using your exact legal business name and physical address. If you find an existing record, you can claim it rather than creating a duplicate, which would cause data fragmentation across two separate files.
Before starting the application, have the following ready: your legal business name exactly as registered with your state, your physical business address (not a PO Box), your business phone number, your EIN, the date your business was established, the number of employees (including yourself), your estimated annual revenue, your industry or SIC/NAICS code, and the full name and title of the business owner or primary principal. Accuracy matters here because D&B verifies this information against public records, and inconsistencies delay processing or result in errors on your credit file.
Go to dnb.com and navigate to the DUNS number request page. D&B periodically reorganizes their website, but the application is typically found under "Get a DUNS Number" or "D&B D-U-N-S Number" in the products or solutions menu. Complete every field in the application form. Use your legal business name exactly as it appears on your state filing, not a trade name, abbreviation, or DBA unless you also include the legal name. Enter your physical address, not your mailing address if they differ. Submit the form and save your confirmation number and any reference ID provided.
D&B may contact you by phone or email within two to four weeks to verify the information you submitted. They may ask basic questions about your business operations, confirm your address and phone number, or request clarification on your industry classification. Respond promptly, because unanswered verification requests delay your application. If D&B calls from a number you do not recognize, they typically leave a voicemail referencing your DUNS application. Call back within a few business days.
After approximately 30 days, you receive your DUNS number by email. In some cases it arrives sooner, within two to three weeks. Once you have the number, search for your business on dnb.com to verify that the record is accurate. Check your business name, address, phone number, industry classification, and employee count. If anything is wrong, submit corrections through your D&B account immediately, because this information flows into your credit report and is visible to anyone who pulls it.
After receiving your DUNS number, log into your D&B account and complete your company profile. Add a detailed description of your products and services, your founding date, your corporate structure, and any professional certifications or industry memberships. A complete profile signals legitimacy and professionalism to lenders, vendors, and partners who pull your D&B report. An incomplete profile with missing fields looks like a shell company or a business that does not take its financial reputation seriously.
Free vs Paid DUNS Options
The standard DUNS number application is completely free and always has been. D&B does not charge for the number itself. However, D&B offers paid services that include expedited DUNS processing alongside credit monitoring and profile management tools.
D&B CreditBuilder costs approximately $229 per year and includes expedited DUNS number processing (as fast as one business day), the ability to add up to 12 tradeline references to your D&B report, monitoring alerts when your scores change, and tools to manage your company profile. CreditBuilder Plus at approximately $449 per year adds the ability to share your D&B report with lenders and vendors and includes more advanced monitoring features.
Whether the paid service is worth it depends on your timeline. If you are in the early stages of building credit and can wait 30 days for your DUNS number, the free application works perfectly. If you need your number quickly because you are applying for a government contract, a large vendor account, or a business loan with a time-sensitive deadline, paying for expedited processing makes sense. The CreditBuilder tradeline reference feature can also be valuable early on, because it lets you proactively add payment references from vendors that do not automatically report to D&B.
Common DUNS Application Mistakes
Using a PO Box instead of a physical address. D&B requires a physical address for your DUNS file. PO Boxes are not accepted as your primary business address. If you run your business from home, use your home address. If you use a virtual office service for mail, the physical office address may be acceptable as long as it is a real commercial space with a suite or office number, not a mailbox number at a UPS Store.
Inconsistent business names across applications. If your LLC is registered as "Pinnacle Commerce Solutions LLC" but you apply for your DUNS as "Pinnacle Commerce," D&B may create a separate record or reject the verification. Use your full legal business name on every application, registration, and credit account. Include the entity type (LLC, Inc., Corp.) exactly as it appears on your state filing.
Applying twice and creating duplicate records. If you submit a DUNS application and do not hear back within 30 days, do not submit a second application. Contact D&B customer support to check the status of your first request. Duplicate DUNS numbers for the same business fragment your credit data across two files, diluting your payment history and potentially preventing your PAYDEX score from generating.
Not listing a business phone number. D&B verifies phone numbers as part of the application process. If you enter a personal cell phone that is not associated with your business name in any directory, the verification step may stall. A dedicated business line, even a free Google Voice number forwarded to your cell, solves this issue.
After You Get Your DUNS Number
Your DUNS number by itself does not give you a business credit score. The number simply creates the file that future payment data gets attached to. Your next steps are opening net-30 vendor accounts that report payment activity to D&B and other bureaus, then paying those invoices early to build your PAYDEX score from zero to 80 or above within the first 90 days.
Keep your D&B profile updated as your business grows. Changes in address, phone number, employee count, or revenue should be reflected in your D&B record. An outdated profile can cause application denials when lenders pull your report and see information that does not match what you submitted on your loan or credit application.