List Biological Laboratories

List Labs is a long-established, privately-held CDMO uniquely positioned at the intersection of infectious disease research and the emerging microbiome therapeutics field. The company leverages deep expertise in bacterial fermentation, purification, and toxinology to serve two core markets: as a critical supplier of research-grade bacterial toxins and reagents to academia and biopharma, and as a specialized CDMO for developers of Live Biotherapeutic Products (LBPs) and bacterial-based vaccines. With a history dating to 1978, it combines a stable reagent business with a high-growth service arm, aiming to expand into commercial-scale manufacturing. Its dual business model provides a diversified revenue stream while capitalizing on the growing interest in microbiome-based therapies.

Specialized platform for bacterial fermentation, purification, and cGMP manufacturing of Live Biotherapeutic Products (LBPs), bacterial toxins, polysaccharides, and recombinant proteins.

List Labs occupies a unique niche, competing with large, diversified CDMOs on specialization (bacterial expertise) and with smaller reagent companies on scale and clinical capabilities. Its deep history in toxinology and early entry into LBP manufacturing provide a competitive moat.