This guide is for small business owners and entrepreneurs who want to understand how business credit scores work, which bureaus matter most to lenders, and how to monitor and build their business credit profile effectively.

How Business Credit Bureaus Work

Unlike consumer credit, where everyone’s FICO score is pulled from three standardized bureaus, business credit works differently. Each bureau uses its own scoring model, collects data from different sources, and serves different types of lenders. Vendors, suppliers, banks, and credit card issuers may check different bureaus depending on their preferences and relationships.

Your business credit profile is entirely separate from your personal credit. It is tied to your business EIN, not your Social Security number. This separation is powerful: it allows your business to build its own creditworthiness over time, potentially enabling you to access funding without personal guarantees.

Bureau Comparison: Experian vs D&B vs Nav

Dun and Bradstreet: The Foundation of Business Credit

Dun and Bradstreet is the oldest and most widely referenced business credit bureau. Its PAYDEX score runs from 0 to 100 and is based entirely on your payment history with suppliers and vendors that report to D&B. A PAYDEX score of 80 means you pay on time; a score of 100 means you consistently pay early. PAYDEX only measures trade payment history, which means it does not factor in bank loans or credit cards the way personal credit does.

To build a PAYDEX score, you need a DUNS number (free to obtain at dnb.com) and at least three trade accounts that report to D&B. Opening accounts with vendors like Uline, Grainger, Quill, or Staples on net-30 terms and paying early is the fastest way to build a strong PAYDEX score.

Experian Business: What Banks Actually Pull

Experian’s business credit product generates the Intelliscore Plus, a score from 0 to 100 that predicts the likelihood of a business becoming seriously delinquent within the next 12 months. Banks, SBA lenders, and business credit card issuers frequently pull Experian when evaluating loan or credit applications. A score above 76 is generally considered good.

Experian’s business data comes from a mix of lender reporting, supplier trade lines, and public records (judgments, liens, bankruptcies). Negative public records can severely damage your Intelliscore even if your payment history is clean.

Nav: The Business Owner’s Monitoring Dashboard

Nav is not a credit bureau. It is a monitoring platform that pulls your business credit data from Experian, Equifax Business, and Dun and Bradstreet and displays them in a single dashboard. Nav’s free tier shows you summary scores and basic information. The paid Nav Business Boost tier (around $49.99/month) provides full report access, score simulators, and the ability to add your business payment history to Experian’s database through Nav’s own reporting.

Nav’s most valuable feature for business owners is its financing marketplace. Based on your actual credit profile, Nav shows you which loans and credit cards you are likely to qualify for, saving you from the hard credit inquiries that come with applying blindly. Hustler’s Library consistently ranks Nav as one of the most practical tools for entrepreneurs actively building their business credit.

How to Build Business Credit with Each Bureau

Building Your D&B PAYDEX Score

1. Register for a free DUNS number at dnb.com
2. Open net-30 trade accounts with D&B-reporting vendors (Uline, Grainger, Quill, Staples Business Advantage)
3. Make small purchases each month and pay early (before the due date)
4. After 3 to 6 months of reporting, your PAYDEX score will be established

Building Your Experian Intelliscore

1. Ensure your business is registered with a current address and EIN
2. Open vendor trade lines that report to Experian (some D&B reporters also report to Experian)
3. Apply for a business credit card that reports to Experian Business
4. Pay all accounts on time or early
5. Monitor for and dispute any public record errors (liens, judgments)

For more on how lenders evaluate your business, see our guides on SBA lenders in 2026 and best business checking accounts. The Consumer Financial Protection Bureau also publishes resources on business credit reporting rights.

Clear Winner: Nav for Monitoring, D&B for Building

For monitoring, Nav is the clear winner. It aggregates your scores across bureaus, provides actionable loan matching, and offers the most accessible free tier of any business credit monitoring service. For building a foundational business credit profile that will be recognized by the widest range of lenders and suppliers, Dun and Bradstreet’s PAYDEX is the place to start.

Key Takeaways

• D&B’s PAYDEX is the most widely used score for vendor and supplier credit decisions
• Experian’s Intelliscore Plus is most commonly pulled by banks and SBA lenders
• Nav aggregates multiple bureau scores into one dashboard and matches you to financing you actually qualify for
• Building business credit requires trade accounts that actively report to the bureaus: D&B and Experian separately
• A strong business credit profile can allow you to access funding without personal guarantees

Frequently Asked Questions

Is a business credit score the same as a personal credit score?

No. Business credit scores use different scales, different data sources, and different scoring models than personal FICO scores. Business scores are tied to your EIN, not your Social Security number. Most business credit reports are also publicly available to anyone willing to pay for them, unlike personal credit reports which are private.

How long does it take to build a business credit score?

You can establish a basic PAYDEX score with D&B within 3 to 6 months by opening and actively using at least three trade accounts that report to D&B. Building a score strong enough to qualify for unsecured business loans typically takes 12 to 24 months of consistent positive payment history across multiple bureaus.

Do business credit cards affect personal credit?

It depends on the card. Some business credit cards (particularly from major banks like Chase and American Express) report to both business and personal credit bureaus. Corporate charge cards like Brex and Ramp report only to business bureaus. Always check the reporting policy before applying if protecting your personal credit score is a concern.

Can I dispute errors on my business credit report?

Yes. Each bureau has a dispute process. Contact Experian Business, Dun and Bradstreet, or Equifax Business directly to submit disputes for inaccurate information. Public record errors (incorrect liens or judgments) may require additional documentation to resolve. Nav’s dashboard helps you identify potential errors across multiple bureaus at once.

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