Protein Technologies Ltd (PTL) is an SME whose main business consists of contract research organization (CRO) services. The company also operates as a Research Technology Organization (RTO) and is heavily involved in research and development. PTL specializes in molecular biology, protein chemistry, and assay development for diagnostics and biotechnology. In addition, the company provides contract research services to the biopharmaceutical industry in the areas of recombinant protein production (upstream and downstream processes), protein engineering, molecular analysis, and small molecule characterization; this is one of the company's core values.