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How do I verify my UL number?


When it comes to ensuring the safety and reliability of products, UL (Underwriters Laboratories) certification plays a crucial role. Manufacturers who want to demonstrate that their products meet specific safety standards often seek UL listing. However, verifying UL numbers can sometimes be confusing for consumers and even professionals. In this article, we will provide a step-by-step guide on how to easily verify UL numbers.

Understanding UL Numbers

UL utilizes a unique identification system known as UL numbers to categorize and track certified products. These numeric codes consist of several digits and are assigned to individual manufacturers or specific product types. They indicate that the product has undergone rigorous testing and meets UL's safety requirements. To ensure the accuracy of your verification process, it is essential to understand how UL numbers are structured.

Steps to Verify Your UL Number

1. Obtain the UL number: Most UL labels or markings include a visible UL logo along with the assigned UL number. This information is typically found on the product packaging or the product itself.

2. Visit the UL Certification Database: UL provides an online database where you can verify UL numbers for free. Access the database through UL's official website or by using the direct link provided below in the source section.

3. Enter the UL number: Once you have accessed the database, locate the search bar and enter the UL number you wish to verify. Be sure to enter the complete number accurately, including any hyphens or other special characters.

4. Review the results: After submitting the UL number, the database will display the related information, including the manufacturer's name, product type, and details of the UL certification. Carefully examine the provided data to ensure it matches the product you intend to verify.


Verifying UL numbers is an essential process to confirm the legitimacy of a certified product. By understanding the structure of UL numbers and following the steps outlined above, you can easily authenticate UL certification. Remember to consult the official UL Certification Database for accurate and up-to-date information. This verification process empowers consumers to make informed decisions and ensures that safety standards are met by manufacturers.


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