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Antibodies & Antigens

Over 50 Years of Antibody Manufacturing

At Fortis Life Sciences, we offer antibodies and related reagents for a variety of applications. Find reagents to support your research and development in immunology, oncology, cardiovascular disease, neuroscience, diagnostic assay manufacturing, and more. 

Our catalog of antibodies and antigens includes primary antibodies, secondary antibodies, antibody conjugates, antiserum, IgG fractions, and proteins. For diagnostic assay manufacturers, we offer a dedicated suite of antibodies and antigens tested for lateral flow assay (LFA) applications.

Primary Antibodies

3D illustration of antibodies (immunoglobulins) floating against a blue and purple background, representing immune response.
Primary Antibodies

Secondary Antibodies

3D rendering of antibodies with colorful surface details, depicting immune response and protein structure visualization.
Secondary Antibodies

Purified Proteins

3D illustration of antibodies binding to viral spike proteins, representing immune defense and infection neutralization.
Purified Proteins

Antibodies for Clinical Diagnostics

Hand holding a rapid lateral flow test device showing two visible lines, indicating a positive test result.
Clinical Diagnostics

New Antibodies

3D illustration of blue and yellow antibodies highlighting antigen binding, symbolizing immune defense and diagnostics.
New Antibodies

Reliability is Our Focus

Our customers keep coming back because they can trust the lot-to-lot consistency of our antibodies. Every time a new lot of antibody is produced, it is tested in the applications it has been validated for.   

See the science behind how we validate our antibodies to ensure your study is a successful one. 

Using Antibody Validation Pillars to Characterize UBQLN4

Western blot of UBQLN4 (~70 kDa) and COPB2 (~100 kDa) in HEK293T, OVCAR-3, MCF-7, and K-562 cell lines.
Watch Webinar

Ensuring Antibody Specificity & Reproducibility

Fortis Life Sciences guide on antibody specificity and reproducibility: The Six Pillars of Antibody Validation.
Download Whitepaper

Pillars of Antibody Validation

Researchers using validated antibodies and antigens to strengthen diagnostic and therapeutic programs
Read More

Try Before You Buy

Illustration of antibodies with laboratory microcentrifuge tubes, symbolizing antibody research and storage.

Antibodies can be finicky. Trust us, we understand. 

We offer a cost-effective way for you to test our antibodies in your own hands, on your own samples. With over 6,000 antibodies available in a trial size format, we ensure you have the tools you need to achieve accurate and reliable results in your research.

Trial Size Antibodies