About UL
Underwriters Laboratories Inc. (UL) is an independent, not-for-profit product-safety testing and certification organization. We have tested products for public safety for more than a century.
Since our founding in 1894, we have held the undisputed reputation as a leader in product-safety testing and certification within the United States. Building on our household name in the United States, UL is becoming one of the most recognized, reputable conformity assessment providers in the world. Today, our services extend to helping companies achieve global acceptance, whether for an electrical device, a programmable system, or an organization's quality process.