About us

UL is an independent product safety certification organization that has been testing products and writing Standards for Safety for more than a century. UL evaluates more than 19,000 types of products, components, materials and systems from more than 66,000 manufacturers’ each year. In total, there are more than 20 billion UL Marks appearing on products worldwide. UL's global family of companies and network of service providers includes 120 laboratory, testing and certification facilities serving customers in 102 countries.

UL’s time-tested system supports governmental product safety regulations, and helps companies meet the challenge of accessing global markets while bringing safer products to consumers. Building on our product safety heritage, UL has expanded into environmental claims verification and sustainability standards development, as well as verification services supporting supply chain integrity.