Trusted by Scientists Since 1936


In 1936, we introduced the first rapid carbon determinator to the American iron and steel industry, and the LECO name quickly became synonymous with fast, accurate results. Although much has changed over the years, one thing has remained the same—customers around the world still count on LECO for results they can trust.

Today, we are proud to provide innovative technology for your most challenging samples, including instruments for analytical, separation, and metallographic science as well as a complete line of consumable products. A family-owned company, LECO designs and manufactures most instrument components at our headquarters in St. Joseph, Michigan. Plus, our products are backed by exceptional service and support long after the sale is complete.

Our quality—and our results—speak for themselves.

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