About Us
Accuracy & Integrity Since 1880
We have one goal in mind – accuracy. For more than 145-years, our independent, unbiased metallurgical laboratory has provided precise assay results to our worldwide customers. Our assays are commercial-grade and detail the scientific truth.
Welcome to LEdoux
Ledoux & Co. is an independent, ISO 17025-accredited and ISO 9001:2015-certified lab with over 145 years of expertise in precise analysis of precious metals, base metals, concentrates, ores, and trace impurities.
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What we do
From Fortune 500 companies to family-owned businesses, Ledoux & Co. is the trusted partner for metallurgical analysis. Our expertise spans fire assay, wet chemistry, and instrumental analysis, built on a legacy of accuracy and reliability.
ISO 17025 Accredited & ISO 9001:2015 Certified
Our history, team and ISO 17025 accreditation are the reasons why we have been operating since 1880. See how Ledoux & Co. can help you meet your company’s goals.
We are an ISO 17025 accredited lab, where our testing methods are accurate, quality-controlled and timely.
We are proud of this accreditation because it is the cornerstone of excellence for testing laboratories.
It signifies our commitment to quality, competence, and reliability. It means our dedicated team is operating at the highest level of industry standards and recognized as a leader in the precious metals testing field.
For our worldwide clients, it means peace of mind, knowing that they can trust our results.
Ledoux & Company Founder, A.R. Ledoux
"Shall the Company’s standards be maintained, will its honorable career be perpetuated, will the name of Ledoux & Company continue to stand for conscientious business methods and exact technical work, and what can I do before I go, to secure a continuance of this success and ideals?”
Our Evolution
- In 1953, rising costs led Alfred Ledoux Jr. to move the lab to Teaneck, NJ, expanding our capabilities to assay most elements on the periodic table.
- In April 2024, we moved to a state-of-the-art facility in Rockaway, NJ, setting ourselves up for future growth.
- Almost 150 years after our founding, we remain committed to Alfred Ledoux Sr.’s vision of scientific excellence.
- As a family-owned, independent laboratory, we deliver unbiased and accurate assays. We’re proud of our history, employees, and customers.
