NAIC Number
A unique five-digit identification number assigned to every insurance company by the National Association of Insurance Commissioners (NAIC), used to verify insurer identity, licensing status, and financial strength.
Overview
The NAIC Number is a five-digit code assigned by the National Association of Insurance Commissioners (NAIC) to every insurance company operating in the United States. It serves as a unique identifier that allows regulators, compliance professionals, and the public to look up information about an insurer — including its financial condition, licensing status, and complaint history.
On the ACORD 25 form, NAIC numbers appear in the "Insurers Affording Coverage" section next to each insurer's name.
How It Works
The NAIC is a regulatory support organization created by state insurance commissioners. While it does not regulate insurers directly (that is done by individual state departments of insurance), it maintains the most comprehensive database of insurance company information in the country.
Every insurance company that is licensed (admitted) or approved (surplus lines) to do business in any U.S. state receives an NAIC number. This number stays with the company throughout its existence, even if the company changes its name or is acquired by another entity. It is the insurance industry's equivalent of a Social Security number for companies.
Why It Matters for Compliance
The NAIC number is your fastest path to verifying an insurer's legitimacy. Using the NAIC number, you can:
Confirm the insurer exists. A certificate listing a carrier with no valid NAIC number — or an NAIC number that does not match the carrier name — is a red flag for fraud.
Check financial strength. The NAIC database links to AM Best and other rating agencies. Most compliance programs require insurers to maintain a minimum AM Best rating of A- (Excellent) with a Financial Size Category of VII or higher. An insurer with a poor rating may lack the financial resources to pay large claims.
Verify state licensing. Insurance is regulated at the state level. An insurer must be licensed (or approved as a surplus lines carrier) in the state where the risk is located. The NAIC number lets you check whether the insurer is authorized to write business in your state.
Research complaint history. The NAIC maintains complaint data that shows how often consumers file complaints against a particular insurer relative to its market share. A high complaint ratio may indicate claims handling problems.
Where to Look It Up
The NAIC provides a free lookup tool at its website (naic.org) and through the NAIC Consumer Insurance Search tool. Most state departments of insurance also offer company lookup tools that accept NAIC numbers. The lookup returns the company's legal name, domicile state, license type, and active status.
Common Compliance Checks
| Check | What You Are Verifying |
|---|---|
| NAIC number is present | The certificate includes verifiable insurer information |
| NAIC number matches insurer name | The insurer listed is who it claims to be |
| AM Best rating >= A- VII | The insurer is financially strong enough to pay claims |
| Licensed in your state | The insurer is authorized to write business where the work occurs |
| Company is active | The insurer has not been placed in receivership or liquidation |
Example
A vendor's certificate lists "National Continental Insurance Company" as Insurer A with NAIC #23965. A compliance reviewer looks up NAIC #23965 and confirms: the company exists, it is domiciled in New York, it holds an AM Best rating of A (Excellent) with a Financial Size Category of XV, and it is licensed to write commercial general liability in the state where the vendor's project is located. The insurer passes the compliance check.
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