This is a Notice of Intent to award a sole-source, firm-fixed price contract to Cytek Biosciences Inc. for the maintenance of two specific Cytek Aurora cytometry systems. The period of performance is from April 28, 2026, to April 27, 2027. The work will support the National Institute of Allergy and Infectious Diseases (NIAID) Laboratory of Immunoregulations. The government believes only the named vendor can provide the required service, but interested parties may submit a capability statement for consideration.