The National Institutes of Health (NIH), specifically the National Institute of Allergy and Infectious Diseases (NIAID), is seeking to procure antibody reagent kits from Abcam, Inc. for a technology development project aimed at validating results from mass cytometry panels used to study the human immune system. These antibody kits are crucial for phenotyping the immunome, which is essential for understanding both normal and pathogenic immune responses in various diseases. Interested vendors capable of providing comparable services are invited to submit a capabilities statement via the NIAID electronic Simplified Acquisition Submission System (eSASS) by 9:00 AM EST on January 21, 2025. For further inquiries, vendors may contact Maliaka Pinkney at maliaka.pinkney@nih.gov or Jesse D Weidow at weidowjd@niaid.nih.gov.