KAIROS Scientific Inc. (Kairos) is a privately held company, engaged in the development of novel instrumentation, reagents and methodologies in the fields of biotechnology, medicine, microscopy and materials science. The company develops digital imaging spectrophotometers for determining the fluorescence excitation, fluorescence emission and absorption spectra. The product portfolio of the company include macroscopic digital imaging spectrophotometer (Macrodis), microscopic digital imaging spectrophotometer (Microdis), microscopic analysis of fret (Microfret), fluorescence imaging microspectrophotometer (Fims) and cyberdope-software for optimizing searches of sequence space. The product application areas include, high-throughput screening of evolved proteins, which include biopharmaceuticals and bioindustrial enzymes, microbial identification and biodiversity and natural products screening. The key services offered by the company include kcat enzyme evolution, microbial identification, biodiversity and natural products screening as well as contract research and development. Kairos is headquartered at San Diego in California, the US.