About Us

Refeyn pioneers analytical instruments that put molecular mass measurement capabilities within easy reach for scientists. Refeyn’s unique products measure the mass of individual proteins, nucleic acids, complexes and viruses – providing vital insights for scientific discovery, R&D and therapeutics production.  

Our instruments feature mass photometry technology, which uses light to quantify the mass of single particles in solution without labels. Providing intuitive data in minutes, mass photometry helps scientists solve their research questions, optimize R&D processes and focus on innovation.   

Refeyn was founded on the belief that broadening the availability of mass photometry would accelerate science. It was spun out of Oxford University in 2018. Today, more than 170 of our instruments have been installed in labs around the world, resulting in more than 150 scientific papers being published so far that use mass photometryl.  

Our mission is to transform analytical workflows in the life sciences, biopharma and beyond,

using the power of light.  

As our company grows, we continue to push the boundaries of single-particle analysis, while striving to inspire and meet the needs of scientists. 

A global network

We develop and build all our products at our Oxford, UK headquarters. We also have offices in Boston and Portland, USA, and Kobe, Japan – with sales and support present across Europe, North America, and Asia. Our widespread global network of staff and distributors are equipped to answer any queries about our products.  

Join the team

We are inspired by the power of mass photometry and committed to helping it reach its maximum potential. By joining us, you get to be a part of the team behind a pioneering tech that is accelerating scientific discovery. What’s more, you get to do this as part of a fast-growing and diverse team, with opportunities for learning, growth, and development.