List Labs specializes in the production of native toxins, recombinant proteins, bacterial fermentation, assay development, contract manufacturing, and biotherapeutics. List Labs produces C. difficile toxin A and toxin B, shiga toxins, cholera toxin, anthrax toxins (PA, LF, and EF), pertussis toxin, diphtheria toxin, CRM197, tetanus toxin, staphylococcal enterotoxin B, botulinum toxins as well as several types of lipopolysaccharides (LPS) or endotoxin for purchase by the research community.