Binding Site is leading the way in special protein diagnostics with Freelite®, the market-leading and guideline-recommended free light chain assay, and Optilite®, the smart solution for special protein testing ®. In addition to a menu of assays for the investigations of immune status, including Beta-2 microglobulin and CSF assays, Binding Site’s Immunological group provides bulk & customized products to IVD manufacturers.