LDOS vs LECO Comparison

Leidos Holdings Inc is a technology, engineering, and science company that provides services and solutions in the defense, intelligence, civil, and health management, both domestically and internationally. The customers of the company includes the U.S. Department of Defense ("DoD"), the U.S. Intelligence Community, the U.S. Department of Homeland Security ("DHS"), the Federal Aviation Administration ("FAA"), the Department of Veterans Affairs ("VA"), and many other U.S. civilian, state and local government agencies, etc. The company is engaged in four reportable segments; National Security & Digital, Health & Civil, Commercial & International and Defense Systems. It provides a wide array of scientific, engineering and technical services and solutions across these reportable segments.

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. The company generated roughly $4.2 billion in sales in 2025.