R&D Systems
Manufacturer supplying research tools and diagnostics for biotechnology and hematology, includes antibodies

   Randox Life Sciences
Manufacturer & supplier of human recombinant proteins, assay conjugates, high quality polyclonal and monoclonal antibodies.

   Antibodies-Online
More than 400000 ELISA kits, antibodies, proteins, peptides and isotype controls. Find and order the most suitable product for your research.

   Antibody Directory
A comprehensive directory of various antibodies, antigens, enzymes and proteins for molecular life sciences and biotechnology use

   LifeSpan BioSciences
A global provider of catalog antibodies, custom antibodies, tissue microarrays, and imunohistochemistry (IHC) services

   Abnova
 Over 45000 antibody/antibodies, 19000 Recombinant Protein/Proteins, 3000 antibody Pairs/Kits

   eBioscience
Manufacturer of novel and staple research reagents for scientists worldwide: antibodies, ELISA sets, and TrueBlot, a novel WB/IP product

   BD Biosciences
Develops products including antibodies that help isolate, grow, and analyze living cells and tissue for genomics, proteomics, drug discovery and development, oncology and immune system

   Imgenex
Develops novel reagents, including antibodies, gene and protein expression systems, and arrays of various cells and tissues
 
   Abcam
Supplier of antibodies, kits and reagents

   BioLegend
Develops antibodies and manufactures world-class, cutting-edge immunological reagents for biomedical research

   Invitrogen
Offers a wide array of products and services for life science research, particularly in the fields of molecular biology and cell biology

   Linscott's Directory
Directory of Immunological & Biological Reagents