ULS vs WSO Comparison

UL Solutions is a global leader specializing in a broad range of product testing, inspection, and certification services. UL Solutions is the for-profit branch out of three organizations under the UL Enterprise. TIC operations make up nearly all of UL Solutions' total revenue and are composed of two segments: industrial and consumer. UL Solutions' remaining business includes software and advisory, which complements its core TIC offerings. The firm operates globally.

Watsco is the largest HVAC and refrigeration products distributor in North America with approximately 13% market share. The company primarily operates in the United States (90% of revenue) with significant exposure in the Sunbelt states. Watsco also has operations in Canada, Latin America, and the Caribbean. The company's customer base comprises more than 120,000 dealers and contractors serving the replacement and new-construction HVAC/R markets for residential and light-commercial applications. As much as 20% of residential HVAC units are distributed through Watsco in any given year. Revenue is approximately 75%-80% residential HVAC and 20%-25% commercial, with relatively small exposure to more complex "applied" solutions.