UL
 
UL, short for Underwriter Laboratories Inc., is an independent safety science company founded in 1894 in the US. UL provides safety solutions to promote safe living and working environments. Its services involve certification, validation, testing, inspections, audition, education and advisory, in five businesses including Product Safety, Verification Services, Life & Health, Knowledge Services and Environment, to offer solutions needed in a constantly evolving world, facilitating trade and providing peace of mind. UL is one of several US companies approved to perform safety testing. UL marking is also globally deemed a symbol for product safety.