CUSABIO is a National High-Tech Enterprise with research, production and sales in one. After 11 years of effort, CUSABIO has become a good partner to researchers through worldwide. We are dedicated to providing 60,000+ validated antibodies, 6000+ recombinant proteins, 580+ cytokines and thousands of ELISA kits to global customers in the research fields of cancer, cell biology, immunology, neuroscience, epigenetics, etc. All kinds of our products can meet customers' different demands in various scientific research fields.

What We Do

As a manufacturer of ELISA kits, antibodies, proteins and related reagents, our only mission is to provide the best products and related custom service to researchers so that they can have a good starting for the next breakthrough. CUSABIO's high quality has been guaranteed by many published literatures in all kinds of famous journals, such as Science, Nature, Cell, Developmental Biology, Molecular Cell, Genes & Development, and so on. Now, the publications citing our products has reached more than 4,800, and hundreds of publications are updating every year.


CUSABIO has a sound platform for the development of ELISA kit, mature antigen-antibody research and development system. We are proficient in a variety of ELISA technologies such as double antibody sandwich method, double antigen sandwich method, direct competition ELISA method, indirect competition ELISA blocking method, indirect ELISA method and other methods.

Combined with diagnostic kits development team, we are able to develop the kits with clinical diagnostic level, and make the quality in the leading place worldwide. CUSABIO now offers a broad range of ELISA kits covering over 6,000 different assay targets. If you want to view the list of ELISA kits, please click here.


CUSABIO offers 60,000+ antibodies that are specific to a variety of species and can be used in multiple applications. Furthermore, the number of CUSABIO antibodies is continuing to grow at a rate of 1000 per year.

As an original manufacturer, CUSABIO designs, produces and validates every antibody in-house. Besides advanced experimental apparatus, CUSABIO antibody line also has a professional technical team, so CUSABIO has succeeded in setting up many technology platforms. At present CUSABIO antibodies could be applied in ELISA, WB, IHC/ICC, IF, IP/Co-IP, ChIP and FC. Please click here to view the catalogue of antibodies.


CUSABIO Protein Expression Platform has established four recombinant expression systems from prokaryotic (E.coli) to eukaryotic (Yeast, mammalian cell and insect baculovirus), and has also built unique in vitro E.coil expression system, which enables us to express transmembrane proteins that are usually quite difficult to express.

We currently have 70 native proteins, 100 small molecule antigens, 320 active proteins, 1000+ recombinant proteins in stock, 5700+ developed recombinant proteins, 10,000+ cDNA clones, 36,000+ transmembrane proteins, 500,000+ semi-customized recombinant proteins. Please click here to obtain more information about proteins.

Our Promise/ Mission

CUSABIO's goal is to provide the highest quality ELISA kits, antibodies, proteins and services for reasonable costs allowing our customers to focus their precious time and resources on advancing their own research. Besides, CUSABIO aims to offer their customers with the critical reagents they need more rapidly and in a more cost-effective manner than can be done in their own labs. Here, we illuminate our promise from the following aspects.

  • Technical Support

    CUSABIO technical team consists of scientists with Doctorate and Master Degrees.

    Solve customer problems within 24 hours by email, phone, livechat.

    More than 200 online technical resources.

  • Global Presence

    More than 90 countries and 150 distributors all over the world.

  • Affordable Price

    According to our mission, CUSABIO always keeps on improving production efficiency and controlling the cost under the premise in quality so that we can provide products and services for customers at affordable price.

  • 100% Risk-free Performance Guarantee

Who Support Us to Keep the Promise

From 2016 to now, we have established Nobel laureate workstations with Nobel laureates Professor Hartmut Michel and Professor Randy Wayne Schekman. Each year, several professional technicians from their labs come to guide us in developing high-quality transmembrane proteins and exosome related products.

A dwarf standing on the shoulders of a giant may see farther than a giant himself. The cooperation with these two scientific masters has made us look farther in the cutting-edge technology of life science research. With efforts of CUSABIO's team of scientists and their help, we will adhere to the belief of "satisfying our customers" and provide satisfactory products and excellent services. And then we will be your good and trusted partner in biology research.

Professor Hartmut Michel
Winner of the 1988 Nobel Prize in Chemistry
Randy Wayne Schekman
Winner of the 2013 Nobel Prize in Chemistry