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Applied Photophysics is a leading provider of systems and accessories for the biophysical characterization of biomolecules. Headquartered in Leatherhead, Surrey, UK, the Company has been established for more than 50 years.

About Us

Applied Photophysics of Leatherhead, Surrey, UK, is a leading provider of solutions for the biophysical characterization of biomolecules and has been providing spectroscopy to the research community for over 50 years. Chirascan™ systems use the phenomenon of circular dichroism (CD) to characterize changes in the higher-order structure of proteins. These systems are used in cutting-edge research and to support the development of innovator drugs and biosimilars in the biopharmaceutical industry.


The company’s SX-range of stopped-flow spectrometers is acknowledged globally as the gold standard for kinetic studies of fast biochemical reactions. Through a joint venture with Fluorescence Innovations Inc of Minneapolis, MN, USA, operating as Protein Stable, we have also introduced easy-to-use high-throughput protein stability screening with microplate-based intrinsic fluorescence thermal ramping and chemical melt plate readers.


ISO Certifications




We are an ISO9001 (certificate number 195657) and IS0140001 (certificate number 198150) accredited company. You can verify the validity of our ISO certificate by entering our certificate number via this link:

Alternatively, you can download our ISO certificates below: 

ISO9001 Certificate

ISO14001 Certificate



TUV Certification


We are a TUV SUD NRTL certified organisation.

You can verify the validity of our TUV certificate below.


TUV SUD Verification



B2B Compliance



We are a registered member of B2B Compliance and are legally compliant with Waste Electrical and Electronic Equipment regulations 2013 and all subsequent amendments. 

You can download our certificate of compliance below.

B2B Compliance Certificate



Molly loves everyone and everything except for the tune of the Mr Whippy van, which sends her barking mad! We can't serve you ice cream, but we have been providing the world's most accurate chiral spectrum analysis for over 50 years.