UL, an independent product safety certification organization that has been testing products and writing standards for safety for more than a century.

Underwriters Laboratories® 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 annually with 21 billion UL Marks appearing on 72,000 manufacturers' products each year. UL's worldwide family of companies and network of service providers includes 62 laboratory, testing and certification facilities serving customers in 99 countries.

UL's global conformity work in 2008

• 20 billion UL Marks appeared on products
• 72,302 manufacturers produced UL certified products
• 93,762 product evaluations were conducted by UL
• 579,684 Follow-Up Services inspection visits were conducted by UL
• 19,535 types of products were evaluated by UL
• 117 UL inspection centers in service
• 98 countries with UL customers
• 447 million consumers were reached by UL with safety messages in Asia, Europe and North America
• 1,362 current Standards for Safety published by the UL family of companies (1,063 for UL; 299 for ULC)
• 64 laboratory, testing and certification facilities in the UL family of companies
• 6,808 employees in the UL family of companies ready to serve UL customers