Revenue
The table below summarizes the major service categories from which the Company derives its revenues for the years ended December 31:
(in millions)202520242023
Certification Testing$851 $784 $718 
Ongoing Certification Services1,006 953 874 
Non-certification Testing and Other Services911 860 812 
Software285 273 274 
Total $3,053 $2,870 $2,678 

Description of Major Service Categories
Certification Testing
The Company evaluates products, components and systems according to global or regional regulatory requirements and other design and performance specifications. Select certification testing services include testing to global or regional standards, engineering evaluation and project review and functional safety testing of embedded software. Certification testing services generally align with the new product development cycle and help customers mitigate risk, demonstrate compliance with regulatory requirements and deliver confidence to businesses and consumers, resulting in demand for ongoing certification services. As a result of the certification process, the Company may authorize its customers to use the Company’s certification marks, including the Company’s registered UL-in-a-circle certification mark (the “UL Mark”), on their products, packaging and marketing collateral as part of their manufacturing, distribution and marketing processes to demonstrate to the marketplace that their product has met the applicable requirements. Certification testing services often lead to Ongoing Certification Services to support the continued safety, compliance and performance objectives of the customer.
Contracts are generally structured as fixed payments as the total amount to be charged to the customer does not vary. Revenue from Certification Testing is generally recognized over-time. In these cases, the services create an asset with no alternative use as each of the services are specific to the products and specifications provided by the customer, and the Company has an enforceable right to payment. Revenue is generally recognized based on the relationship between the time elapsed of each project phase relative to the expected duration of that phase, which is considered the most indicative of the Company’s performance to-date under the terms of the contract.
In some instances, revenue from Certification Testing does not meet the over-time criteria and is recognized at a point in time when control is transferred to the customer. Control is transferred to the customer upon the delivery of the test report to the customer. These instances occur when the agreement or the nature of the services causes a lack of right to payment until control transfer.
Ongoing Certification Services
To maintain the right to use the Company’s certification marks, including the UL Mark, and meet certain regulatory requirements, the Company’s customers must meet certain certification program requirements, including mandatory inspection and monitoring by the Company. These requirements, addressed through standard certification and inspection services, are designed to validate the continued compliance of the Company’s customers’ previously certified products, components and systems. Services are delivered through periodic inspections, initial and follow-up audits, sample testing and UL Solutions label usage. The frequency and combination of these services can vary based on product, component or system type, production volume and historical risk-based customer compliance. These ongoing certification services are designed and executed to help the Company’s customers confirm ongoing compliance and to help protect the integrity of the UL Mark. Select services include factory inspection and testing to confirm products that are being produced match the configuration of products that were tested and certified.
Contracts are generally structured as fixed payments as the total amount to be charged to the customer does not vary. In some cases, the customer is charged a usage price based on its total production volume. Revenue from compliance program contracts is recognized over-time on a straight-line basis because the customer receives and consumes the benefit of continued certification as the Company performs services through the periodic verification of the customer’s compliance.
As part of Ongoing Certification Services, customers may order physical labels (recorded in other current assets) that bear the UL Mark to affix to their products to demonstrate to end-customers that the products comply with the certification requirements of the Company. The labels are a separate performance obligation, distinct from the compliance program. Revenue from physical labels is recognized upon shipment, the point in time in which the customer obtains control of the labels.
Non-certification Testing, and Other Services
The Company offers testing services to address performance and other requirements that may not be required by any regulation and may not result in a certification, but are still desired by the Company’s customers to help ensure the safety, performance and reliability of their products. Select services include on-site and remote inspections, audits and field engineering specialty services, testing for energy efficiency, wireless and electromagnetic compatibility, quality, chemical and reliability for customers in medical devices, information technologies, appliances, HVAC and lighting. For retail and consumer customers, the Company offers testing such as color-matching, sensory, emissions and flame resistance. Lastly, the Company offers advisory and technical services to support the Company’s customers in managing their safety, compliance, regulatory risk and sustainability programs.
Contracts are generally structured as fixed payments as the total amount to be charged to the customer does not vary. For services where the customer does not simultaneously receive and consume the benefit of the performance obligation, revenue is recognized upon the delivery of the final deliverables to the customer. For services that create an asset with no alternative use as each of the services are specific to the products and specifications provided by the customer, and the Company has an enforceable right to payment, revenue is generally recognized based on the relationship between the time elapsed of each project phase relative to the expected duration of that phase, which is considered the most indicative of the Company’s performance to date under the terms of the contract. Advisory revenue is generally recognized over time.
In some instances, revenue from non-certification testing does not meet the over-time criteria and is recognized at a point in time when control is transferred to the customer. Control is transferred to the customer upon the delivery of the test report to the customer. These instances occur when the agreement or the nature of the services causes a lack of right to payment until control transfer.
Software
The Company provides software as a service (“SaaS”) and license-based software solutions, including implementation and training services related to software, to enable the Company’s customers to manage complex regulatory requirements, deliver supply chain transparency and operationalize sustainability. The Company’s SaaS and licensed software solutions provide data-driven product stewardship, chemicals management, supply chain insights, environmental, social and governance (“ESG”) data and reporting, environmental, health and safety (“EHS”) training, management and compliance, and additional regulatory driven software solutions.
Contracts are structured as fixed payments as the total amount to be charged to the customer does not vary. The Company generally recognizes revenue from SaaS contracts, which are provided on a subscription basis, ratably over the contract period beginning on the date the service is first made available to the customer. The Company generally recognizes revenue from on-premise software at a point in time when it is made available to the customer. The revenue from implementation services, post-contract customer support services, and other customer support services is recognized over the service period as the customer benefits from the services as they are performed.
Contract Balances
Gross contract liabilities for services totaled $130 million and $123 million as of December 31, 2025 and 2024, respectively, which are reduced by previously recognized revenue of $32 million and $31 million as of December 31, 2025 and 2024, respectively. In addition, contract liabilities include amounts collected for annual fees as well as fees collected on software license arrangements that are earned over the term of the arrangement. Contract liabilities for these services totaled $75 million and $70 million as of December 31, 2025 and 2024, respectively.
The revenue recognized during the year ended December 31, 2025, that was included in contract liabilities at December 31, 2024, amounted to $124 million. The revenue recognized during the year ended December 31, 2024, that was included in contract liabilities at December 31, 2023, amounted to $119 million.
Remaining Performance Obligations
At December 31, 2025, the Company estimates that $205 million in revenue is expected to be recognized in the future related to performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period. The Company expects to recognize approximately 65% of its unsatisfied (or partially unsatisfied) performance obligations as revenue in the subsequent 12 months, with the remaining balance to be recognized thereafter.
Remaining consideration from contracts with customers is included in the amount presented above and includes contracts with multiple performance obligations and multi-year agreements, which are typically recognized as the performance obligation is satisfied.

Historical Timeline

Fiscal YearFiled
2025Feb 19, 2026Showing above
2024Feb 20, 2025

About Revenue Disclosures

Revenue disclosures under ASC 606 explain how a company identifies performance obligations, allocates transaction prices, and determines when revenue is recognized. This section is essential for understanding whether reported revenue reflects genuine economic activity or aggressive accounting choices. Analysts examine the mix of point-in-time versus over-time recognition, which directly affects revenue timing and comparability.

Key signals: rising contract liabilities (deferred revenue) suggest strong future revenue visibility, while declining contract assets may indicate slowing project milestones. Watch for variable consideration estimates — rebates, returns, and performance bonuses that require management judgment. Significant changes in disaggregated revenue by geography or product line can reveal shifting business mix before it appears in headline numbers. Compare revenue growth against contract liability growth to assess sustainability, and scrutinize any changes in the timing of recognition that coincide with earnings pressure.