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Underwriters Laboratories Inc. (UL)

Underwriters Laboratories Inc. (UL) is an independent, not-for-profit product-safety testing and certification organization. UL has tested products for public safety for more than a century.

Underwriters Laboratories logo

Since UL's founding in 1894, they have held the reputation as a leader in product-safety testing and certification within the United States. Building on their household name in the United States, UL is becoming one of the most recognized, reputable conformity assessment providers in the world.

Today, UL's services extend to helping companies achieve global acceptance, whether for an electrical device, a programmable system, or an organization's quality process.