The National Institute on Aging requires neuropathology services to support the Brain Atlas Project, which aims to map brain cell types and gene activity to better understand Alzheimer’s disease. The work will be performed at NIH/NIA in Bethesda, MD, with a period of performance from June 1, 2026, to May 30, 2027. This is a small business set-aside, and the government will award a firm fixed-price purchase order based on the Lowest Price Technically Acceptable (LPTA) evaluation method. No specific budget amount is provided in the description. Offerors must demonstrate capabilities in sample processing, digital imaging, data platform requirements, and staffing.