Linscott's Directory of Immunological & Biological Reagents 

Using this database, it is possible to search for antibody suppliers for thousands of specific antibodies and other immunological and biological reagents such as ELISA (enzyme-linked immunosorbent assay) assay kits, cytokines, enzymes, recombinant proteins, siRNAs (short interfering ribonucleic acids), tissues, organs, and custom antibody services.