Sigma-Aldrich is a leading Life Science and High Technology company. Their biochemical and organic chemical products and kits are used in scientific and genomic research, biotechnology, pharmaceutical development, the diagnosis of disease and as key components in pharmaceutical and other high technology manufacturing.
http://www.sigmaaldrich.com

Sigma is the world leader in biochemicals, including antibiotics, buffers, carbohydrates, enzymes, forensic tools, hematology and histology, nucleotides, proteins, peptides, amino acids and their derivatives, used in basic life science research.
http://www.sigmaaldrich.com

Cytiva offers solutions to support your work from biological research to clinical therapy, including tools for research, drug discovery, diagnostics, and bioprocessing.
https://www.cytivalifesciences.com

Supplier of research tools for molecular biology, cell biology and drug screening.
http://www.cambrex.com

Provides innovative products to the scientific community including antimicrobial reagents, selective antibiotics, selection media and cloning vectors etc.
http://www.invivogen.com

Acquired by Sigma-Aldrich in 2005, the largest supplier of cell culture products including sera, media, supplements and bioproduction consumables.
http://www.sigmaaldrich.com/SAFC