LECO vs WSO Comparison

Lincoln Electric is a leading manufacturer of welding, cutting, and brazing products. Its portfolio includes arc-welding solutions, plasma and oxy-fuel cutting systems, brazing and soldering alloys, and automation solutions. Lincoln Electric serves clients across general fabrication, heavy industries, automotive, construction, shipbuilding, energy, and process industries, among others. Based in Cleveland, Lincoln Electric operates in 19 countries and employs 11,000 worldwide. The company generated roughly $4.2 billion in sales in 2025.

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.