LECO vs ALGN 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 billion in sales in 2024.

Align Technology is the leading manufacturer of clear aligners. Invisalign, its main product, was approved by the Food and Drug Administration in 1998 and has since dominated, controlling over 90% of the market. Invisalign can treat roughly 90% of all malocclusion cases (misaligned teeth), and there are over 230,000 Invisalign-trained dentists and orthodontists. In 2022, Invisalign treated over 2 million cases, or roughly 10% of all orthodontic cases for the year, and it has treated over 14 million patients since its launch. Align also sells intraoral scanners under the brand iTero, which captures digital impressions of patients' teeth and illustrates treatment plans. Over 85% of Invisalign cases are submitted by digital scans, and iTero scans make up over half of these scans.