Underwriters Laboratories (UL) is a global safety certification organization that tests and certifies products to ensure they meet specific safety standards. Founded in 1894, UL evaluates a wide range of products, including electrical devices, building materials, and consumer goods, to help protect people and property from hazards. UL's certification mark is recognized worldwide, indicating that a product has been rigorously tested for safety and performance. The organization also conducts research and provides training on safety-related topics, contributing to advancements in safety standards and practices across various industries, including construction, electronics, and healthcare.