The National Institutes of Health (NIH), specifically the National Institute of Allergy and Infectious Diseases (NIAID), is seeking to negotiate a maintenance/service contract for the Cytek Aurora Flow Cytometer, S/N U0537/CD141, Product #N9-90136. The contract aims to renew a service agreement that includes on-site support, preventive maintenance, and technical assistance to ensure the proper functioning of the flow cytometer, which is critical for research on immune system responses to pathogens and vaccines. Interested vendors must demonstrate their capability to meet the requirements and provide proof of authorization from Cytek Biosciences, Inc. to service the equipment. The period of performance for this contract is from September 4, 2025, to September 3, 2026, with a submission deadline for capability statements set for 10:00 AM EST on May 19, 2025. For further inquiries, vendors can contact Rita Davis at rita.davis@nih.gov or Tonia Alexander at TALEXANDER@NIAID.NIH.GOV.