Founded in 2009, FCSL specializes in pre-clinical and clinical flow cytometry projects. We provide:

  • First rate and personal customer service with frequent project updates
  • State of the art facilities and equipment
  • Prompt, clear, comprehensive, and accurate reporting
  • Turn-around time unequaled by other contract laboratories
  • Up front itemized pricing with no hidden costs
  • Expertise in client processes, eliminating turnover issues

We Have Analyzed Samples From Clients In…


  • Amsterdam, Netherlands
  • Hannover, Germany
  • Essen, Germany
  • Frankfurt, Germany
  • Grosshansdorf, Germany
  • Bosnia/Herzegovina
  • Balassagyarmat, Hungary
  • Budapest, Hungary
  • Belfast, Ireland
  • Sheffield, United Kingdom
  • Cambridge, United Kingdom
  • Mexico City, Mexico
  • Queensland/Australia
  • Lagos, Nigeria
  • Ontario, Canada
  • Toronto, Canada
  • Tokyo, Japan

US Domestic:

  • Seattle, WA
  • Sacramento, CA
  • Aurora, CO
  • Denver, CO
  • Greeley, CO
  • New York, NY
  • San Antonio, TX
  • Houston, TX
  • Pittsburg, PA
  • Eagle, ID
  • Grand Rapids, MI
  • Madison, WI
  • Goldsboro, NC
  • Philadelphia, PA
  • Easton, PA
  • Portland, OR
  • Baltimore, MD
  • Gaithersburg, MD
  • Frederick, MD
  • Jacksonville, FL
  • Tampa, FL

  • Tallahassee, FL
  • Augusta, GA
  • New Brunswick, NJ
  • Greenbrae, CA
  • Los Angeles, CA
  • San Francisco, CA
  • Palo Alto, CA
  • San Jose, CA
  • Livermore, CA
  • New Haven, CT
  • West Lafayette, IN
  • Reno, NV
  • Indianapolis, IN
  • Greenfield, IN
  • Chicago, IL
  • Scottsdale, AZ
  • Omaha, NE
  • Kansas City, MO

Our Leadership

The owners have combined experience of 20+ years in flow cytometry and 15+ years working in a Good Laboratory Practice (GLP) environment.

Lynette Brown, MS, CHT

President and Flow Cytometry Specialist

Lynette has 20+ years professional experience in flow cytometry both in clinical and research settings. Being a co-founder of FCSL has allowed her the freedom to delve into the technology with depth and passion. She is an integral part of client communications and is able to translate their ideas and needs into experimental activity. She has overseen the development, qualification and validation of numerous assays for both surface and intracellular markers along with cellular functional assays that have been used for both exploratory and GLP studies.

Lynette is currently serving as the President of FCSL and oversees the overall operations of the company. She is a main author of the standard operating procedures driving FCSL processes and experimental procedures outlining the planning and execution of study activities. In addition, Lynette is a board member of the Northwest Flow Cytometry Society, a local user group, providing educational activities and a forum for the flow cytometry community in the Pacific Northwest.

Jennifer J. Stewart, PhD

Vice President and Laboratory Director

Jennifer has 20+ years of experience with flow cytometry in academic, nonclinical and clinical settings. As a co-founder of FCSL, she has the opportunity to interface with clients to gain an understanding of the evolving demands for the technology in drug development. Her mission is to be at the cutting edge in the field, knowing that FCSL’s services can assist in the creation of treatments for millions worldwide who currently suffer from disease. This effort is supplemented through collaboration with other experts on research projects, publishing manuscripts, organizing workshops and speaking at symposiums.

Jennifer is currently serving as the Vice President and Laboratory Director at FCSL and is involved in the interpretation and reporting for the various flow cytometry projects. In addition, she is the Co-chair for the AAPS Flow Cytometry Action Programming Committee and has served as a guest editor for Cytometry Part B: Clinical Cytometry and as a scientific reviewer for several high profile journals.

We are a high throughput and high capacity facility running multiple flow cytometers, and up to 10 colors daily.

We Also Have Full Cell Culture Capabilities As Well As 2-8ºC, -20 ºC, -80ºC, And Liquid Nitrogen Storage Capabilities.

We Specialize In Immunophenotyping Experiments

Human Immunophenotyping Panels

  • T-lymphocyte, B-lymphocyte and Natural Killer cells (TBNK)
  • T Regulatory Cells
  • T Memory, Naïve and Effector cells
  • T Cell Activation
  • B Memory and Plasma cells
  • Custom panels are also available

Animal Immunophenotyping Panels

  • NHP B cells
  • NHP T cell activation
  • NHP Intracellular
  • Rat TBNK
  • Mouse TB
  • Dog TB
  • Custom panels also available

We Are Expanding. Here Is Our 12-Month Growth Rate…

Specialized Service

By focusing on flow cytometry services, FCSL is able to ensure that there is no dilution of the scientific and managerial focus because of unrelated upstream and downstream functions.

We utilize Becton Dickinson flow cytometers. Currently our facility houses a BD FACSCantoA cytometer with two scatter parameters and up to 6 fluorescent channels,  three BD FACSCantoII cytometers with two scatter parameters and up to 8 fluorescent channels, and two BD FACSCanto cytometers with two scatter parameters and up to 10 fluorescent channels. We also have two Guava PCAs which perform all of our cell count and viability assessments.

We are proficient in processing a multitude of specimen types including whole blood, tissue, frozen PBMCs and tumors for pre-clinical model systems and human clinical trials.

Specimen Shipping

FCSL operates as an outsourcing CRO in which specimens are shipped to us for analysis. This provides our clients more flexibility in choosing a laboratory and can reduce overload of their internal resources.

Since we rely on shipped specimens, we conduct rigorous qualification and validation of our assays to ensure specimen stability is well understood. We will work closely with you to determine appropriate sample preparation and shipping requirements for a particular assay.