About CUSABIO

CUSABIO is a life science reagent manufacturer with core expertise in ELISA kits, recombinant proteins, antibodies, and custom research services.

Since 2007, CUSABIO has continuously expanded its technologies, manufacturing capabilities, and research reagent portfolio to support the evolving needs of life science research. As research continues to advance, we remain focused on providing reliable products, practical technical support, and long-term value for the global research community.

2007

Found

14,700+ m²

R&D and Manufacturing Facilities

5,000+

Trusted by Global Institutions

31,000+

Publication Citations

Who We Serve

Different research teams come to CUSABIO with different needs: some are selecting reliable reagents for routine experiments, some are validating new targets, and others are looking for support on project-specific reagent development. The following are the main customer groups we support and the types of research applications our products are commonly used for.

Research customers we support

Academic laboratories

For target biology, molecular mechanisms, cellular studies, and assay-based research.

Pharmaceutical and biotech R&D teams

For reagent sourcing, target validation, antibody screening, and custom project needs.

CROs and diagnostic research groups

For research-use reagents and services supporting project-specific workflows.

Research fields and applications

Our products are used to support target detection, protein studies, antibody-based assays, cytokine analysis, and project-specific research needs.

Immunology

Cancer Research

Neuroscience

Cell Biology

Inflammation

Metabolism

Infectious Disease Research

Drug Discovery

Gene & Protein Expression

Developmental Biology

Stem Cell & Regenerative Medicine

More Fields and Applications

Example applications

Target detection

Protein analysis

Cytokine analysis

Immunofluorescence

IHC

ELISA

Flow cytometry

Protein interaction

More applications

Our products are widely used in basic research, translational research, and preclinical drug discovery.

What We Provide

CUSABIO combines broad catalog coverage with selected service capabilities to support research-use reagent needs across different biological research workflows.

ELISA Kits

CUSABIO offers over 4,000 ELISA kits covering more than 20 species and 15 research areas. Available in sandwich and competitive ELISA formats, our kits support a broad range of biological samples.

Each product is validated through rigorous quality control to deliver reliable, reproducible, and consistent results for life science research. Our ELISA Kits has been cited in 31,000+ publications and recognized by universities and research institutes across 80+ countries, making them a preferred choice for life science research.

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Recombinant Proteins

CUSABIO converts your toughest research obstacles into tangible achievements. Our 750+ full-length transmembrane protein portfolio, featuring complex targets with up to 15 domains, preserves native epitopes and biological activity via proprietary VLP, Nanodisc, and detergent platforms.

Beyond that, we supply 17,000+ recombinant proteins across five systems: E.coli, Yeast, Insect, Mammalian, and Cell-free, ensuring customized formats for antibody screening, functional assays, and receptor-ligand interaction studies.

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Antibodies

CUSABIO stocks nearly 70,000 ready-to-ship antibodies. Backed by in-house platforms—ELISA, WB, IHC/ICC, IF, IP/Co-IP, ChIP, FACS—most antibodies have been successfully validated across multiple applications.

Every antibody carries a 100% risk-free performance guarantee with 24-hour tech support and 100% refund or replacement available.

With nearly 20 years of expertise, CUSABIO antibodies serve 5000+ global clients across biotech, academia, and healthcare.

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CRO Services

CUSABIO's CRO services are built on our expertise in protein and antibody technologies. Our protein expression services (risk-free) have achieved a 99.1% project success rate, with specialized capabilities in transmembrane protein expression.

CUSABIO has delivered 10,000+ custom rabbit polyclonals and hybridoma mAbs, plus 200+ tailored lead antibody discovery programs backed by B-cell sorting, VHH library and hybridoma platforms.

No antibody? No charge!

Explore All CRO Services →

Why Researchers Work with CUSABIO

For researchers, choosing a reagent supplier is ultimately a question of confidence. CUSABIO supports that decision with broad target coverage, research-use product applications, and accumulated use in peer-reviewed studies across global laboratories.

31,000+

Publication Citations

These literature-backed applications reflect the use of CUSABIO reagents across a broad range of research fields, including immunology, cancer research, neuroscience, inflammation, metabolism, infectious disease research, and drug discovery.Learn more >>

Trusted by 5,000+ institutions

from 80+ countries and regions, reflecting CUSABIO's broad research reach across global academic, biotech, and industry communities.

Where to Meet and Connect with CUSABIO

CUSABIO welcomes researchers, partners, distributors, and industry teams to connect through daily inquiries, in-person events, and deeper project discussions.

Meet Us at Conferences & Tradeshows

CUSABIO regularly participates in major life science, cancer research, biologics, and protein engineering conferences and tradeshows worldwide. Join us to meet our team in person, explore the latest solutions, and build lasting partnerships.

View Conferences & Tradeshows

Visit Our Production Base

Customers and partners are welcome to visit our production base. Experience our quality-driven operations, advanced technologies, and stringent quality systems firsthand for deeper communication and a closer look at our capabilities.