Call: 508-397-9881

Previous & Current Clients


John Rozembersky
Chemical Engineer


John is the "go- to" expert for both flat sheet and hollow fiber membranes and process systems. He has successfully defined, designed, optimized and solved technical problems for hundreds of upstream and downstream Tangential Flow Filtration applications including: plasma and protein fractionation, vaccines, recombinant proteins purification, virus removal and cell harvesting/clarification applications.

A History in Membrane Technologies
An unrivaled dedication to TFF

5 years
WaterSep BioSeparations Corporation
Executive Vice President.

6 years
RGI Consulting
CEO, Principle Consultant

10 Years
Pall Corporation

10 Years
Filtron Technology Corporation
Co-founder and executive VP

8 Years
Membrane Manufacturing and Process Development

Special Projects

Here are just a few of the clients John Rozembersky has worked with:

Academic & Research
Biotechnology & Biopharmaceutical

Princeton University - NJ
UC Berkeley - CA
University of Rhode Island - RI
UC San Francisco
Biologics & Therapeutics
Tufts University - MA
Rutgers - NJ

Biologics & Therapeutics
Biotechnology & Biopharmaceutical

Biomarin - CA
Gen-Probe - CA
Acceleron Pharma - MA
Biopure (today = OPK)
Genzyme - MA
Alexion - RI
Boehringer Ingelheim - CT, Austria, Germany
Alphavax - MD
Bristol Myers Squibb - NY, MA
GlaxoSmithKline - PA
Altus Pharmaceuticals - MA
Centocor - PA
GTC Biotherapeutics - MA
Amgen - CA, WA, RI, PR
Charles River Labs - MA
Hematech - MA
Associate of Cape Cod - MA
Codexis - CA
Hemosol - Ontario
AstraZeneca - MA
CuraGen - CT (now Celldex)
Human Genome Sciences - MD
Auxilium Pharmaceuticals - PA
DSM Biologics - NL
Hyaluron - MA (now AMRI)
Avecia Biotechnology
Idec (now Biogen Idec)
Aventis - France (now Sanofi)
Eli Lilly (now Lilly)
ImmunoGen - MA
Azopharma - FL
Enzon Pharmaceuticals
Immunomedics - NJ
Berna Biochem AG - Germany
Formatech - MA
BioDelivery Sciences International - NJ Gencia - VA
King Pharmaceuticals (now Pfizer)
Genentech - CA
Lonza - MA, NH, MD
Biogen Idec - MA
Genetic Institute - MA (now Pfizer) Medarex - NJ (now BMS)
Biomanufacturing Training and Education Center (BTEC) - NC
Medimmune - MD
Mitsubishi - Japan
Organogenesis - MA
Ortho Biologics LLC - PR
Ortho Pharmaceuticals - NJ
Regeneron - NY
Repligen - MA
Roche - NJ
Sanofi - France
Selecta BioSciences - MA
Shire - MA
Solvay Pharmaceuticals - GA (now Abbott)
Stryker Biotech - MA
Teva Phamaceuticals - Isreal
TKT - MA (now Shire)
US Army - Fort Detrick, MD

Plasma Fractionation and Blood Biologics
Biotechnology & Biopharmaceutical

Chiron - CA (now Novartis)
CSL - Australia
Cutter Labs -CA (now Bayer Heathcare)
Grifols Biologicals - CA
Invitrogen - CA (now Life Technologies)
Lille Plasma - France
Marseille, France
Massachusetts Biologics Laboratory (now UMassBiologics)
Melville Plasma - NY (to Grifols to Kedrion-Talecris)
Octapharma - Switzerland
Orsay - France
Pasteur Mérieux - France

Biotechnology & Biopharmaceutical

Acambis - MA (now Sanofi-Aventis) Connaught Labs - PA, Canada (now Sanofi Pasteur)
Antex Biologics Inc - MD (now Emergent)
Crucell - Holland B.V
Lederle Labs - NY (now Pfizer)
Avant Immunotherapeutics - MA
Emergent - MD
Merck & Co. - PA, VA
Novavax - MD
Protein Sciences - CT
Wyeth - MA, NY, NC (now Pfizer)


Excellent presentation, John is extremely  knowledgeable & charismatic. This course is  beyond all course on TFF I have heard....tons of info in short time . John Doe – URI lecture


Phone: 508 397 9881
Fax: 978 929 9357
Address: 90 Bicentennial Way, Boxborough, Ma. 01719.