The UL enterprise is a global safety science company headquartered in Northbrook, Illinois, composed of three organizations, UL Research Institutes, UL Standards & Engagement and UL Solutions.
UL headquarters in Northbrook, Illinois
Underwriters' Laboratories, 207-231 East Ohio Street, Chicago
The Recognized Component Mark (left) on a printed circuit board
Northbrook is a suburb of Chicago, located at the northern edge of Cook County, Illinois, United States, on the border of Lake County. Per the 2020 census, the population was 35,222.
A Northbrook welcome sign
Techny Towers
St. Giles Episcopal Church
Lake Shermerville, Wood Oaks Green Park