A DUNS number can help establish a company’s identity within the Dun & Bradstreet business database and connect that company to a commercial credit file. The unique nine-digit identifier is widely used by suppliers, lenders, enterprise customers, and other organizations to verify businesses and support credit or vendor decisions. Although the U.S. federal government now uses the Unique Entity ID for federal awards, DUNS numbers remain relevant for commercial credit, supplier onboarding, and trade credit programs that support B2B growth.
The Data Universal Numbering System, commonly called DUNS, is a unique nine-digit business identifier created by Dun & Bradstreet in 1963. It connects a company or business location to information maintained in the Dun & Bradstreet Data Cloud.
A DUNS number may help other organizations verify a company’s:
The number does not operate like a personal Social Security number or federal tax ID. Instead, it identifies a business within Dun & Bradstreet’s commercial data system and links to the company’s D&B credit file.
Dun & Bradstreet collects and organizes commercial information used in business verification, credit evaluation, supplier management, and risk assessment. Lenders, vendors, insurers, and enterprise procurement teams may consult D&B information when deciding whether to work with a business or extend credit.
A DUNS number helps organizations distinguish between businesses with similar names and identify relationships among headquarters, branches, and subsidiaries. It may also support automated business verification within procurement and credit decision workflows.
Dun & Bradstreet generally assigns DUNS numbers at the lowest organizational level with a distinct business operation. A headquarters, branch, subsidiary, or separate operating location may therefore have its own number.
Once assigned, a DUNS number remains associated with that business location. Dun & Bradstreet states that it does not reassign the number to an unrelated organization, even if the original location closes.
A DUNS number is not legally required simply to own or operate a business. Its value depends on the organizations your company works with and the credit opportunities it plans to pursue.
Requesting a DUNS number creates or confirms a distinct business identity in Dun & Bradstreet’s database. That profile may help suppliers, lenders, and potential partners verify that the company exists and review available commercial information.
A DUNS number alone does not guarantee:
Credit decisions may also consider revenue, time in business, financial statements, industry risk, outstanding obligations, payment history, and other underwriting data.
Some large organizations request a DUNS number during vendor registration, developer enrollment, or supplier verification. For example, Apple requires eligible organizations enrolling in the Apple Developer Program to provide a DUNS number so Apple can verify the organization’s identity, legal status, and address.
Requirements vary by organization. Businesses should review the specific onboarding instructions provided by each customer, marketplace, or procurement department rather than assuming every enterprise requires the same identifier.
Suppliers may use D&B information when deciding whether to offer:
A DUNS number gives the supplier a consistent way to identify the applicant. However, many providers also use bank data, financial statements, payment behavior, public records, and proprietary risk models.
Resolve Pay’s business credit checks combine data analysis, behavioral signals, and credit expertise to help merchants evaluate business buyers and make more informed credit decisions.
Businesses can search for an existing DUNS number or request one directly through Dun & Bradstreet. D&B states that companies are not required to purchase another product or service to obtain, use, or maintain the number.
A DUNS number may already exist if Dun & Bradstreet previously created a record for the company. Before submitting a new request:
Submitting duplicate requests can complicate company records, particularly when a business has multiple locations or variations of its legal name.
When requesting a number, Dun & Bradstreet may ask for information such as:
D&B may contact the applicant to verify that the information is accurate and that the person submitting the request is authorized to represent the business.
Dun & Bradstreet states that standard requests are generally completed within 30 business days. An optional paid expedited service may be presented during registration, but it is not required to obtain the number.
Because availability and processing options may vary by country and application type, businesses should review the current terms shown during the official application process.
Third-party services may offer to complete the request on behalf of a business. However, obtaining a standard DUNS number directly from Dun & Bradstreet does not require purchasing a filing service.
Businesses should use official D&B channels and avoid providing sensitive company information to websites that imitate the Dun & Bradstreet registration process.
The usefulness of a DUNS profile depends partly on the accuracy of the information connected to it. Incorrect legal names, old addresses, duplicate records, or outdated ownership information can delay credit reviews and vendor onboarding.
Dun & Bradstreet provides tools that allow authorized representatives to review and request updates to company information. Businesses should check the profile after events such as:
A location change does not automatically mean the company must obtain a completely new number. Dun & Bradstreet evaluates the business circumstances and maintains the identifier according to its assignment rules.
When requesting a correction, provide information that clearly supports the change. Documents may include state registration records, utility bills, corporate filings, licenses, or other records identifying the legal entity and operating location.
Businesses should also make sure that legal names and addresses remain consistent across:
Consistent records can reduce verification delays and support more reliable accounts receivable automation.
Obtaining a DUNS number is only the beginning of building a D&B credit profile. The number identifies the company, while payment experiences and other business data determine the information available in the file.
A supplier or lender must report eligible payment data to Dun & Bradstreet before that activity can contribute to the company’s reported trade experiences. Not every vendor reports, and reporting practices may differ by supplier.
Before opening an account specifically to build credit, ask:
The time required to build a meaningful profile varies. There is no universal three-month, six-month, or twelve-month schedule because reporting frequency, transaction volume, and data verification differ by business.
The PAYDEX score is a dollar-weighted indicator of how a business has paid reported obligations. Scores range from 1 to 100, with higher scores representing more timely payment performance.
Dun & Bradstreet states that:
The score is calculated from qualifying payment experiences submitted by suppliers and vendors and accepted through D&B’s review process.
PAYDEX is only one part of a business credit assessment. Creditors may also evaluate financial strength, delinquency risk, failure risk, public filings, company size, and their own underwriting information.
Businesses can support a healthier commercial credit profile by:
A DUNS number does not remove the need for active cash flow management. Businesses should balance credit-building goals with operational liquidity and realistic payment schedules.
Dun & Bradstreet’s lookup tool can help users locate their own company’s DUNS number or search for another company’s number. The free result may provide basic identifying information, while detailed commercial reports or monitoring services may require a separate D&B product.
A business may use a DUNS lookup to:
A DUNS lookup should not be treated as a complete credit investigation. Companies extending substantial credit should use a documented underwriting process that may include financial information, payment history, bank data, fraud checks, and credit check automation.
DUNS numbers, EINs, and UEIs serve different purposes. Many businesses may use more than one of these identifiers.
An Employer Identification Number is a federal tax identification number issued by the Internal Revenue Service. It is used for tax administration and may also be needed for payroll, bank accounts, licenses, and other business activities.
The IRS allows eligible businesses to apply for an EIN directly and without charge.
The Unique Entity ID is assigned through SAM.gov. Entities that want to bid directly on federal contracts or apply for federal financial assistance generally need a UEI and, depending on the activity, an active SAM.gov registration.
The federal government completed its transition from DUNS numbers to UEIs in April 2022. SAM.gov now assigns the UEI as part of federal entity registration.
|
Identifier |
Issuing Organization |
Primary Purpose |
|---|---|---|
|
EIN |
Internal Revenue Service |
Federal tax identification |
|
DUNS number |
Dun & Bradstreet |
Commercial business identification and D&B business files |
|
UEI |
SAM.gov |
U.S. federal awards and entity registration |
A company may use its EIN for tax and banking activities, its DUNS number for commercial verification or supplier onboarding, and its UEI for federal contracting or assistance.
A well-maintained business identity can make credit reviews and vendor onboarding more efficient, but sustainable growth also depends on how a company manages receivables, customer terms, and working capital.
When sellers offer net terms, they allow qualified buyers to receive goods or services before payment is due. This can support larger purchases and stronger customer relationships, but it also creates receivables and credit exposure for the seller.
Resolve Pay’s net terms platform helps eligible B2B merchants offer flexible terms while Resolve supports credit decisions, invoice advancement, payment workflows, and collections. Approved sellers can receive non-recourse advances on qualifying invoices while their buyers retain the agreed payment schedule.
Resolve Pay brings several functions into one platform:
Through its B2B payments platform, Resolve Pay helps merchants connect business identity verification with practical credit, payment, reconciliation, and receivables workflows.
A DUNS number can establish a recognizable commercial identity, but it does not replace underwriting, receivables management, or disciplined payment practices. Businesses still need reliable processes for evaluating customers, setting appropriate credit limits, issuing invoices, collecting payments, and protecting cash flow.
Resolve Pay helps manufacturers, wholesalers, distributors, and other B2B merchants manage those processes in one embedded platform. Its integration options connect credit, invoicing, reconciliation, collections, and payments with supported accounting, ERP, ecommerce, and sales systems.
For sellers offering terms, Resolve Pay can advance funds on approved invoices on a non-recourse basis while buyers continue to pay under their agreed schedules. This allows businesses to offer qualified customers greater purchasing flexibility without waiting through the full invoice term to access cash.
A DUNS number can support your company’s commercial identity. Resolve Pay provides the infrastructure to turn sound credit decisions and flexible payment terms into a scalable B2B growth strategy.
Resolve Pay uses available business information, automated analysis, behavioral signals, and human credit expertise to evaluate buyers applying for credit lines or net payment terms. A DUNS number or D&B credit file may provide useful context, but Resolve Pay does not rely on a single identifier or score when assessing creditworthiness.
A DUNS number is not universally required for every Resolve Pay transaction. Eligibility and verification requirements depend on the buyer, merchant, requested credit line, and available business information. Resolve Pay may use multiple data sources to verify a company and support its credit decision.
Yes. Resolve Pay’s business credit check tools help merchants assess buyers before extending net terms. The platform combines business data, automated analysis, and credit expertise to support credit line recommendations and more informed approval decisions.
Resolve Pay helps eligible merchants offer approved buyers flexible payment terms while supporting credit decisions, invoicing, payment reminders, reconciliation, and collections. Merchants may also receive non-recourse advances on qualifying invoices while buyers continue paying according to their approved schedules.
Resolve Pay does not directly create, update, or guarantee changes to a company’s D&B credit file, DUNS information, or PAYDEX score. Businesses should contact Dun & Bradstreet to correct company records and confirm which suppliers report payment activity. Resolve Pay instead supports the credit-to-cash process by helping merchants evaluate buyers, manage receivables, and access funds sooner on qualifying invoices.
This post is to be used for informational purposes only and does not constitute formal legal, business, or tax advice. Each person should consult his or her own attorney, business advisor, or tax advisor with respect to matters referenced in this post. Resolve assumes no liability for actions taken in reliance upon the information contained herein.