One Lambda is a company specializing in transplant diagnostics. It offers a portfolio of integrated solutions that are used by transplant centers for human leukocyte antigen (HLA) typing, and antibody detection both pre- and post-transplant and biopsy assessment with the molecular microscope diagnostic system. Its product lineup includes Single Antigen, an assay for antibody detection, and next-generation sequencing (NGS), an assay for high-resolution genotyping.