WSO vs NDSN Comparison

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.

Nordson manufactures equipment (including pumps, valves, dispensers, applicators, filters, and pelletizers) used for dispensing adhesives, coatings, sealants, and other materials. The firm serves a diverse range of end markets including packaging, medical, electronics, and industrial. Nordson's business is organized into three segments: industrial precision solutions, medical and fluid solutions, and advanced technology solutions. The company generated approximately $2.8 billion in revenue in its fiscal 2025.