UL Solutions is a safety science company headquartered in Northbrook, Illinois, providing testing, inspection and certification services, advisory and software to customers in more than 110 countries. Its origins date to 1894, when William Henry Merrill founded an electrical testing bureau in Chicago, and it is listed on the New York Stock Exchange. The group operates more than 140 office and laboratory sites worldwide, including EMC and wireless testing in the UK. In October 2026 it acquired the electrical and electronics testing business of Eurofins Scientific, adding laboratories in Europe, Asia and the United States.