UL is a global leader in advancing safety science and has more than a century of expertise innovating safety solutions ― from the public adoption of electricity to breakthroughs in sustainability, renewable energy and nanotechnology. Dedicated to promoting safe living and working environments, UL safeguards people, products and places in important ways, facilitating trade and providing peace of mind. UL evaluates more than 19,000 types of products, components, materials and systems annually with 20 billion UL Marks appearing on 72,000 manufacturers' products each year. The UL family of companies includes 68 laboratory, testing and certification facilities serving customers in 102 countries.