This is a combined synopsis/solicitation for a firm fixed-price maintenance service agreement for a Thermo Electron Eclipse system and associated liquid chromatographs at the NIH/NIAID in Bethesda, MD. The service is critical for high-value research and requires guaranteed OEM technicians and parts, with third-party offerors needing to provide certification as an authorized Thermo Electron dealer or service provider. The period of performance is from April 27, 2026, to April 26, 2027. The award will be based on technical capability and price.