Sigma-Aldrich

Sigma-Aldrich Corporation is an American chemical, life science and biotechnology company owned by Merck KGaA.

Created by the 1975 merger of Sigma Chemical Company and Aldrich Chemical Company, Sigma-Aldrich since grew through various acquisitions until it had over 9,600 employees and was listed on the Fortune 1000 at the time of its acquisition by Merck. The company is headquartered in St. Louis and has operations in approximately 40 countries. We provide scientists and engineers with best-in-class lab materials, technologies and services. With the 2015 combination of Merck Millipore and Sigma-Aldrich, we now have a broad portfolio of 300,000 products and an expanded global footprint.

Aldrich is a supplier in the research and fine chemicals market. Aldrich provides organic and inorganic chemicals, building blocks, reagents, advanced materials and stable isotopes for chemical synthesis, medicinal chemistry and materials science. Aldrich's chemicals catalog, the "Aldrich Catalog and Handbook" is often used as a handbook due to the inclusion of structures, physical data, and literature references. Sigma is the Sigma-Aldrich's main biochemical supplier, with offerings including antibiotics, buffers, carbohydrates, enzymes, forensic tools, hematology and histology, nucleotides, proteins, peptides, amino acids and their derivatives.