Bluejay Diagnostics, Inc., a medical diagnostic company, develops rapid test for the monitoring of disease progression in the United States. It is developing Symphony platform, a technology platform comprising Symphony analyzer that orchestrates blood processing, biomarker isolation, and immunoassay preparation using non-contact centrifugal force; and Symphony Cartridge, which includes reagents and components. The company also offers ALLEREYE diagnostic test, a point-of-care device for the diagnosis of allergic conjunctivitis. In addition, it develops IL-6 for the monitoring of disease progression in critical care; as well as hsTNT/I and NT-proBNP for the monitoring of patients acuity with chest pain. The company was incorporated in 2015 and is headquartered in Acton, Massachusetts.