Calbiotech is a worldwide provider of Immunoassay products and services. We offer ELISA, lumELISA and Radioimmunoassay products, as well as PreClinical Testing services. Calbiotech is a worldwide provider of Immunoassay products and services. We offer ELISA, lumELISA and Radioimmunoassay products, as well as PreClinical Testing services.