The Indian Health Service seeks capable Indian-owned enterprises to provide microbiology supplies on an as-needed basis under a blanket purchase agreement. The performance period is for one base year plus two one-year option periods. This is a sources-sought notice for market research only and is not a solicitation. Responses will be used to determine the acquisition strategy, with priority given to firms qualifying under the Buy Indian Act. Interested, qualified parties must submit a response by April 23, 2026, including a detailed company profile and capability statement.