Now expanding with new staff and new cytometers.


Our breadth of experience ranges from standard immunophenotyping to flow cytometry assays for elucidation of intracellular markers. We also have the ability to customize our antibody panels to meet our client’s specific needs. Please inquire to start the scientific discussion.

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Receptor Occupancy

Flow cytometry can be a powerful tool for the evaluation of Receptor Occupancy (RO) to provide an assessment of the therapeutic binding to the target receptor. This can be evaluated using direct or indirect methods. Please inquire to start the scientific discussion.

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Functional Assays

We have full service cell culture capabilities to demonstrate whether or not a cell has the capacity of performing certain functions. Currently we have assays to evaluate Natural Killer Cell functional and a Basophil Activation Test (BAT). Please inquire to start the scientific discussion.

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PBMC Isolation

The separation of Peripheral Blood Mononuclear Cells (PBMC) may be required for certain applications in flow cytometry. At FCSL we can provide support for PBMC separation as required for your specific flow cytometry assay. Please inquire to start the scientific discussion.

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Flow Contract Site Laboratory, LLC has been accredited by the College of American Pathologists (CAP) for Immunophenotyping human common lymphocyte subsets. Please click here to see our Test Menu for CLIA.

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Welcome To Flow Contract Site Laboratory

Flow Contract Site Laboratory, LLC is a contract flow lab that provides state-of-the-art flow cytometry services to support all researchers, biotech and pharmaceutical companies in the process of drug development.

We provide full flow cytometry services (FACS services) from experimental design to specimen processing, acquisition, and data analysis for all stages of drug development from exploratory research, to preclinical GLP and finally in support of clinical trials.


We pride ourselves on the ability to customize any flow cytometry assays to meet our client’s needs. We have extensive experience in data collection and analysis utilizing both straight-forward and complex gating strategies.

Flow Contract Site Laboratory, LLC, as your contract flow lab, can rapidly set up and develop your flow cytometry project with accurate reporting in a cost effective and timely manner. We are ready to collaborate with your next stage of research and provide solutions to your flow cytometry development needs.

We have analyzed samples from all over the world.

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