The gold standard for fast-track protein expression

In drug development, it can be a challenge to scale and commercialize new products that depend upon mammalian and microbial processes. To accelerate production, developers need efficient and regulatory-compliant expression systems that can be scaled quickly and reproducibly to meet future needs. With our portfolio of expression platforms and our extensive experience with mammalian and microbial processes, we can help you develop robust, efficient, scalable and regulatory-compliant processes to equip you for ultimate commercial success.   


Expression systems that can meet your evolving needs

Depending on your needs, you can either take our advanced expression technologies in your laboratory under a license or rely on Lonza to do it for you. These include our GS Gene Expression System® mammalian platform and XS Technologies® microbial platform.

Proprietary technology and expertise is at the core of our expression platforms.

Our passion is to deliver sustainable value to our customers. Through our commitment to continuous technology development and knowledge sharing, we can support the success of your biologics programs

Advanced expression options for your evolving needs

Proprietary technology and expertise is at the core of our expression platforms:

  • Our GS Xceed® Expression System supports the optimal expression and production of monoclonal antibodies and next generation biologics. The complete system includes host cell lines, vectors, access to optimized media and feeds, and process expertise. Learn More
  • Our POTELLIGENT® CHOK1SV® combines the power of BioWa’s engineered glycosylation POTELLIGENT® Technology with the advantages of our industry leading GS Gene Expression System®. By bringing together these advanced technologies, we provide a host cell line and process for producing recombinant antibodies with enhanced ADCC activity. Learn More
  • Our XS Technologies® platform includes Pichia pastoris and Escherichia coli expression systems. With a selection of multi-host systems, you can address a diverse range of molecules. Learn More

All our expression technologies are available for third-party use under a research license or commercial license. 


Our market leading GS Xceed® Expression System track record now underpins dozens of commercially available products and hundreds of others in clinical trials. Our XS® Pichia 2.0 microbial expression systems are high-yielding, with high strain viability for improved product quality.

Easy access to powerful and proven technologies

Our service packages and licensing agreements give you access to extensive technology offerings with a collection of proprietary, highly productive and scalable mammalian and microbial platforms.

By focusing on your research challenges with your ultimate goal in mind, we can help you select the best expression system for your requirements. Our teams will collaborate closely with you, ensuring we develop a high-yielding, cost-effective and rapidly scalable solution which can support the success of your product.

You can gain easy access to our GS System®, XS Technologies® or POTELLIGENT® CHOK1SV® under a Research Evaluation Agreement (REA). We give you the flexibility to use these systems in your own laboratory to generate unlimited numbers of cell lines that express your desired proteins.

Once your product has progressed to clinical filing, you will need a Commercial License (single or multi-product).

expressions technologies

our global footprint in expression technologies

We have a global network of centers of excellence in clinical and commercial manufacturing. Our site in Slough (UK) specializes in mammalian expression and our Visp (Switzerland) site has world-class capabilities for microbial biopharmaceuticals.

Slough, UK

Production, Research & Development, Sales & Support

228 Bath Road
Berkshire SL1 4DX
United Kingdom

Visp, Switzerland

Production, Research & Development, Sales & Support

Visp 3930

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