Founded in 1983 by Dr. Peter St. John, St. John Associates manufactures precision instruments for scientific research. Our headquarters in Beltsville, Maryland hosts our research and administrative operations as well as our testing and quality assurance facilities. Additionally, from this office we coordinate manufacturing with our suppliers and engineering partners located across the U.S. and abroad.

St. John Associates specializes in accurate, reliable and cost-effective instruments. We provide a full one year warranty on parts and labor for all instruments we sell. And, each instrument comes with our guarantee of fast, friendly and knowledgeable service.

For Over 18 years St. John Associates has delivered reliable, accurate and affordable scientific instruments with the promise of friendly, personal support. We offer a full one year warranty on all our products, and we will work with you directly to assemble a solution to your research needs. Take a look at our product lines below for more information.

• Thermal Cyclers (Thermocyclers)
• Filter Fluorometers
• Luminometers
• Wrist-Action Flask Shakers (Peptide Flask Shakers)
• Cation Exchange Columns and Resins
• Amino Acid Analyzers