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How to Get a DUNS Number for Your Business
If you want to build business credit, qualify for government contracts, or establish your company's financial profile, you need to know how to get a DUNS number. The process is free, takes less than 30 minutes, and can open doors that many business owners overlook. This guide walks you through every step - from understanding what it is to using it strategically to access better financing.
In This Article
What Is a DUNS Number?
A DUNS number - short for Data Universal Numbering System - is a unique nine-digit identifier assigned to your business by Dun & Bradstreet (D&B). Think of it as a Social Security number for your company. It creates a permanent business identity that banks, lenders, credit bureaus, government agencies, and potential partners use to look up your company's financial and operational track record.
Dun & Bradstreet introduced the DUNS system in 1963 and it has become one of the most widely recognized business identification standards in the world. Today, over 500 million businesses across more than 200 countries have DUNS numbers on file. When a lender or government agency searches your DUNS number, they can see your company's payment history, legal structure, industry, revenue estimates, number of employees, and overall creditworthiness.
Unlike your Employer Identification Number (EIN), which the IRS uses for tax purposes, a DUNS number is specifically tied to your commercial credit identity. It is the foundation of your Dun & Bradstreet business credit file, and a strong file attached to your DUNS number can qualify you for better loan terms, larger credit lines, and preferential treatment from suppliers.
Key Fact: According to the SBA, all businesses seeking federal contracts through SAM.gov are required to have a DUNS number (now transitioning to the Unique Entity Identifier system through SAM). Having your DUNS in order is a prerequisite for billions in government contracting opportunities each year.
Why Your Business Needs a DUNS Number
Many small business owners focus exclusively on personal credit when trying to access financing. That is a mistake. Building a separate, robust business credit profile - anchored by your DUNS number - gives you access to funding that does not depend on your personal score and does not appear on your personal credit report.
Here is why getting a DUNS number matters for your business:
- Government contracting eligibility: Federal agencies and many state and local government entities require a DUNS number to register your business in procurement portals. Without one, you are locked out of the government contracting market entirely.
- Business credit building: Your DUNS number anchors your D&B business credit file. Every trade payment, loan, and vendor relationship gets reported back to this file. A strong PAYDEX score (D&B's proprietary credit metric) signals creditworthiness to lenders and suppliers.
- Vendor and supplier approvals: Large retailers, wholesalers, and distributors often require a DUNS number before extending net-30 or net-60 payment terms. These trade lines are among the fastest ways to build business credit.
- Grant applications: Many private foundations and government grant programs require a DUNS number as part of the application process for nonprofit and for-profit entities alike.
- Better loan terms: Lenders who pull your D&B file alongside your financial statements get a cleaner picture of your creditworthiness, which can translate to lower interest rates and higher approval amounts.
- Professional credibility: A DUNS number signals that your company is established, registered, and operating legitimately - an important trust signal when dealing with new partners or clients.
According to a CNBC survey of small business financing trends, businesses with established commercial credit profiles - including D&B files - are significantly more likely to receive full funding approval on loan applications compared to businesses with no commercial credit history. Building that profile starts with a DUNS number.
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Apply Now →Who Needs a DUNS Number
The short answer: virtually every business that wants to grow. Whether you are a sole proprietor, LLC, corporation, partnership, or nonprofit, obtaining a DUNS number is a low-cost, high-leverage action that pays dividends over your business's lifetime.
You especially need a DUNS number if you:
- Plan to bid on federal, state, or local government contracts
- Want to apply for business loans or lines of credit in the next one to three years
- Are seeking net-30 accounts from vendors to build business credit
- Want to apply for small business grants from foundations or government programs
- Are building or have recently formed a new legal entity (LLC, corporation, etc.)
- Want to separate your business finances completely from your personal finances
- Plan to pursue SBA loans or other federally backed financing programs
Even freelancers and independent contractors who have structured their work as a business entity benefit from having a DUNS number. As your business grows and your revenue increases, a well-established business credit file gives you options that are not available to businesses starting from scratch.
Pro Tip: Get your DUNS number as early as possible - ideally when you first form your business entity. It takes time for your D&B credit file to build up meaningful payment history, so the sooner you start, the stronger your profile will be when you need financing.
How to Get a DUNS Number: Step-by-Step
The good news is that getting a DUNS number is completely free. Dun & Bradstreet offers free registration through their official portal. There is no need to pay a third-party service, and you should be skeptical of any company charging you to obtain one. Here is exactly how to do it:
Step 1: Gather Your Business Information
Before you start the registration, collect the following information. Having it ready will make the process significantly faster:
- Legal business name - exactly as it appears on your formation documents (articles of incorporation, LLC operating agreement, etc.)
- Doing Business As (DBA) name - if your company operates under a trade name different from its legal name
- Physical business address - a physical street address is required; P.O. boxes are not accepted as primary addresses
- Mailing address - if different from your physical location
- Phone number associated with the business
- Business structure - sole proprietorship, partnership, LLC, corporation, nonprofit, etc.
- Year the business started
- Number of employees at your business location
- Primary SIC or NAICS code - the industry classification code for your business type
- Annual revenue (approximate is fine)
- Name of the business owner or principal
If you operate from a home address and are concerned about privacy, note that D&B will use the address you provide for your business record. Many home-based businesses register with their home address and later update it when they move to a commercial location.
Step 2: Visit the Official D&B Registration Page
Go directly to the Dun & Bradstreet website at dnb.com and look for the free D-U-N-S number registration. The site will first search existing records to confirm whether your business already has a DUNS number assigned to it. This search is important - D&B may have automatically created a file for your business based on public records, meaning you may already have a DUNS number without knowing it.
Enter your business name and address in the search fields. If a record exists, D&B will display it and allow you to claim the existing number. If no record is found, proceed to create a new one.
Step 3: Complete the Registration Form
Fill out all the required fields accurately. D&B uses this information to create your business profile, so accuracy matters. Inconsistencies between your DUNS registration information and what appears in other databases - like your Secretary of State filing, your business bank account, or your website - can create confusion and slow down future credit inquiries.
The form will ask you to create an account with D&B if you do not already have one. This account will allow you to manage your D&B profile, monitor your business credit, and update your information as your company grows.
Step 4: Submit and Verify
After submitting your form, D&B will review the information. For most businesses, the process is straightforward and your DUNS number is assigned within a few business days. In many cases, D&B can issue your number within 24 to 48 hours for the standard free registration.
D&B may contact you by phone or email to verify certain details. Make sure the contact information you provided is accurate and that someone is available to respond to verification inquiries promptly.
Step 5: Confirm Your DUNS Number
Once your registration is processed, you will receive your DUNS number by email or through your D&B account portal. Write it down and store it somewhere accessible - you will need it for loan applications, government registrations, vendor credit applications, and grant submissions going forward.
Quick Guide
How to Get a DUNS Number - At a Glance
Legal name, physical address, EIN, structure, industry code, revenue, and employee count.
Check if D&B already has a file for your business before creating a new registration.
Fill in all fields accurately and create your D&B account for ongoing profile management.
D&B may verify your details by phone or email. Respond promptly to avoid delays.
Standard processing takes 1 to 5 business days. Your number arrives by email or in your D&B portal.
How Long Does It Take to Get a DUNS Number?
The standard free registration through D&B typically takes one to five business days. In many cases, if your application is straightforward and no verification call is needed, D&B assigns your DUNS number within 24 to 48 hours.
There is a faster, expedited option available through D&B's paid service if you need your number urgently - for example, if a contract deadline or loan application requires it within the same business day. Expedited processing typically costs a fee and delivers your DUNS number in as little as a few hours. However, for most business owners, the free standard option is the right choice.
If you need your DUNS number for SAM.gov registration (required for federal contracting), plan ahead. SAM.gov registration itself takes additional time on top of obtaining your DUNS number, so building in at least two to three weeks before any federal contract application deadline is wise.
Important Note: Dun & Bradstreet's free DUNS number registration was previously available through a dedicated site called fedgov.dnb.com for federal contractors. D&B has since consolidated this into their main site. Always use the official dnb.com website to avoid third-party scam sites that charge fees for a free service.
What to Do After You Get Your DUNS Number
Getting your DUNS number is the first step - what you do next determines how valuable it becomes for your business. Here is how to make the most of your new business identifier:
1. Start Building Your D&B Credit File Immediately
A DUNS number alone does not build credit - activity does. Your D&B PAYDEX score is calculated based on how promptly you pay your vendors and suppliers. The fastest way to build your score is to open trade accounts with vendors who report to Dun & Bradstreet, then pay those invoices on time or early.
Common vendor categories that report to D&B include office supply companies, shipping services, wholesale distributors, and certain industry-specific suppliers. Opening five to eight trade accounts and paying them consistently can build a meaningful PAYDEX score within six to twelve months. For more on this process, see our guide on Dun & Bradstreet Business Credit: How to Build Your DUNS Score.
2. Register in SAM.gov (If Seeking Federal Contracts)
The System for Award Management (SAM.gov) is the federal government's central contractor registration database. If you want to bid on federal contracts, subcontracts, or receive federal grant funding, you must be registered in SAM. Registration requires a DUNS number (or the newer Unique Entity Identifier transitioning from DUNS), your business information, your banking details for direct deposit, and certifications about your business size and ownership status.
According to SBA.gov, the federal government sets a goal of awarding at least 23% of federal contracting dollars to small businesses each year - representing hundreds of billions in potential contracts. A registered DUNS number is your ticket to compete for that business.
3. Keep Your D&B Profile Updated
Log in to your D&B account periodically - at minimum once per year - to verify that your business information is accurate. Outdated addresses, incorrect revenue estimates, or stale employee counts can affect how lenders and partners view your profile. Keeping your record current signals that your business is active and well-managed.
4. Monitor Your Business Credit
D&B offers paid credit monitoring services, and there are third-party tools that also track your business credit scores. Monitoring your D&B file helps you catch errors early and understand how your payment behavior affects your creditworthiness. Errors in your file - such as a payment being reported late when you paid on time - can be disputed and corrected through D&B's dispute process. For a broader view of your commercial credit, our post on Free Business Credit Report: How to Get One covers what reports are available and how to access them.
5. Use Your DUNS Number on Applications
Going forward, include your DUNS number on business loan applications, grant applications, vendor account requests, and government registration forms. Some lenders will specifically search your D&B file as part of their underwriting process. Having a DUNS number and a populated file gives you an advantage over businesses with no commercial credit history.
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Apply Now →How a DUNS Number Helps You Get Financing
For business owners looking to grow, one of the most important reasons to get a DUNS number is its impact on your ability to access small business loans and other forms of business financing. Here is exactly how it fits into the lending picture:
Lenders Check Your D&B File
When you apply for a small business financing product - whether it is a term loan, line of credit, or equipment financing - many lenders pull your D&B business credit report alongside your personal credit score and financial statements. A business with a populated D&B file and a strong PAYDEX score signals lower risk, which translates to better terms.
Conversely, a business with no D&B file or a sparse credit history may face higher interest rates, require more collateral, or need a personal guarantee even when the business itself is financially healthy. Building your DUNS-anchored credit file is a direct investment in your ability to borrow at favorable rates.
SBA Loans and Government-Backed Financing
If you are pursuing SBA loans - the most competitive small business lending products available - your business credit profile matters. While SBA lenders do not use DUNS as the primary underwriting tool, a well-documented business credit history supports your overall application. And as noted earlier, any business that might pursue federal contracts or SBA-connected programs benefits from having its DUNS registration in order.
Business Line of Credit Approvals
A business line of credit is one of the most flexible financing tools for managing cash flow, covering operational gaps, or funding short-term opportunities. Lenders issuing lines of credit are particularly attentive to your payment history because revolving credit requires ongoing creditworthiness assessment. A strong D&B PAYDEX score built through your DUNS-linked account can directly improve your approval odds and available credit limit.
Vendor Financing and Trade Credit
Many B2B businesses extend net-30 or net-60 payment terms to their customers - but they check business credit first. Having a DUNS number and a file with D&B is often the first thing vendors check before extending trade credit. This matters not just when you are trying to get credit from suppliers, but also when you are trying to offer it to your own customers and need to establish that your business is creditworthy enough to manage that kind of relationship.
Financing Insight: A Forbes analysis of small business lending found that companies with established business credit profiles - including verified D&B files - were more likely to receive full funding approval and received lower average interest rates compared to businesses relying solely on personal credit. The PAYDEX score, anchored to your DUNS number, is a key differentiator in commercial lending decisions.
DUNS Number vs. EIN: What Is the Difference?
Business owners sometimes confuse their DUNS number with their EIN (Employer Identification Number). These are completely different identifiers used for different purposes.
| Feature | DUNS Number | EIN |
|---|---|---|
| Issued by | Dun & Bradstreet (private) | IRS (federal government) |
| Primary use | Business credit & government contracting | Federal tax filing & payroll |
| Format | 9 digits (e.g., 12-345-6789) | 9 digits with dash (e.g., 12-3456789) |
| Cost | Free through D&B | Free through IRS |
| Required for | Government contracts, vendor credit, D&B credit file | Opening business bank accounts, tax filing, payroll |
| Linked to credit | Yes - D&B PAYDEX and credit file | No - not a credit identifier |
Your business should have both. The EIN is required to open a business bank account and file taxes. The DUNS number is required for commercial credit and government contracting. Together, they form the two most fundamental identifiers for a legally established business in the United States.
Real-World Scenarios: How Business Owners Use Their DUNS Number
Scenario 1 - The New LLC Owner: Maria recently formed an LLC for her commercial cleaning company. She obtained her EIN from the IRS immediately after formation and then registered for a DUNS number the same week. Over the following six months, she opened net-30 accounts with three office supply vendors who report to D&B. When she approached a lender for a working capital loan eight months later, her D&B file showed consistent on-time payments and her PAYDEX score was strong - helping her secure approval at a lower rate than she would have received with no business credit history.
Scenario 2 - The Government Contractor: James runs a small IT consulting firm and learned about a federal agency solicitation for managed services. Without a DUNS number, he could not register in SAM.gov and would have been locked out of the bid entirely. He registered for his DUNS number, completed his SAM.gov registration, and submitted a competitive proposal. His business credit file supported his company's credibility in the eyes of the agency's due diligence process.
Scenario 3 - The Franchise Owner: Lisa purchased a franchise and was required by her franchisor's preferred lending program to provide her DUNS number as part of the loan application package. Because she had obtained her DUNS early and built vendor trade lines from day one, her D&B file showed six months of payment history even before the business opened its doors - giving the lender confidence in her creditworthiness.
Scenario 4 - The Established Business Expanding: Rodriguez & Sons Construction had been operating for eight years with a DUNS number but had never actively managed their D&B profile. When they sought a larger equipment financing line to bid on a major project, their lender pulled the D&B file and found outdated revenue information and several unverified vendor relationships. After cleaning up the file and updating their profile, their PAYDEX score reflected their actual strong payment history - and they received the financing they needed. Read more on the connection between business credit and loan approvals in our guide on How to Build Business Credit from Scratch.
Scenario 5 - The Nonprofit Applying for Grants: A community health nonprofit needed to apply for a federal grant. The application required a DUNS number as part of the SAM.gov registration. The executive director registered for a DUNS number, completed the SAM registration, and submitted the grant application on time. The DUNS number was a non-negotiable requirement - without it, the application would have been disqualified regardless of its merits.
Scenario 6 - The Startup Preparing for Growth: A tech startup founder obtained her DUNS number in month one of operations, even before her first revenue came in. By the time she was 18 months into the business and needed a business line of credit to fund a hiring push, she had a clean D&B file with trade line activity and a solid PAYDEX score. Her early planning paid off in faster approval and better terms. To understand how business credit separates from personal credit over time, see our post on PAYDEX Score: The Complete Guide to Dun & Bradstreet Business Credit.
Turn Your Business Credit into Funding
Crestmont Capital is rated the #1 business lender in the U.S. Whether you need working capital, equipment financing, or an SBA loan, we help you find the right product for your stage of growth.
Apply Now →Frequently Asked Questions
How to Get Started
Go to dnb.com, search for your business, and complete the free registration today. It takes under 30 minutes.
Identify three to five vendors who report to D&B and apply for net-30 accounts. Pay them on time or early to begin building your PAYDEX score.
Once your business credit profile is in order, apply for business financing at offers.crestmontcapital.com/apply-now. Our team works with businesses at every stage.
Conclusion
Knowing how to get a DUNS number is one of the simplest and highest-leverage actions you can take as a business owner. The process is free, takes less than 30 minutes, and creates the foundation for a business credit profile that will serve you for the life of your company. From qualifying for government contracts to accessing better loan terms to earning vendor trade credit, your DUNS number is the key that unlocks a wide range of commercial opportunities.
Do not wait until you need financing to get your DUNS number. Register today, start building trade lines, and give your business the credit profile it deserves. When you are ready to put that credit to work with a small business loan, SBA loan, or business line of credit, Crestmont Capital is here to help you find the right financing for your goals.
Disclaimer: The information provided in this article is for general educational purposes only and is not financial, legal, or tax advice. Funding terms, qualifications, and product availability may vary and are subject to change without notice. Crestmont Capital does not guarantee approval, rates, or specific outcomes. For personalized information about your business funding options, contact our team directly.
