Linscott’s Directory is a fast, free and easy-to-use resource for locating specific antibodies from nearly 300 commercial and governmental sources. They have over 415,000 antibody listings, which can be searched by keyword, antigen, application, host, reactivity or conjugate. The Directory also lists sources for thousands of proteins, assay kits, custom services, and much more.

AntibodyLink.org is an antibody search portal which connects catalog antibodies and research publications to the UniProt protein information resource. The tool uses a proprietary Antibody Name Dictionary model – a collection of protein names, synonyms, and symbols recognized as antibody names which are verified through a full-text search of scientific publications in HighWire Press.

Antikoerper Online and Antibodies Online and Anticorps-Enligne are websites (in German, English, and French, respectively) that facilitates the search for commerically available antibodies. There are more than 115,000 monoclonal and polyclonal antibodies listed in their database and once found, antibodies can be ordered through the website.

Biocompare features lists of antibodies, antibody-affinity media, and antibody production services can be found here. Click here to be taken to their interesting antibody specific search tool where you can limit your query by reactivity, host species, isotype, and conjugate type.

BioHub is an online portal to search for commercially available antibodies. As of mid-2011, there were 500,000+ antibodies in their database. Scientists can read and write about experiences with individual antibodies as part of the platform.

Among other life science portals one can find an antibody database containing more than 110,000 antibodies from 35 manufacturers.

Search this online directory of life science companies by keyword entry or by searchable categories such as monoclonal antibody conjugates, antibody purification, secondary antibodies, and more.

Self-described as “The Buyer’s Guide For Histology Professionals” – search and find antibodies alphabetically or by research areas. There are 120,000+ antibodies and immunological related reagents in their database.

A site that scans thousands of websites – mainly from commercial suppliers – and other sources to locate providers of antibodies (and other reagents). Users can search by categories such as gene, organism, and disease. The results often list antibody products along with publications and relevant patents.