The National Institute of Environmental Health Sciences (NIEHS) awarded a purchase order to Gatan Inc. valued at $149,438.80 on August 24, 2026, for preventive maintenance services on electron microscopy equipment. The order, issued under FAR 12.603 non-competitive authority, carries a firm fixed price and an ultimate completion date of August 23, 2027. Performance occurs in Pleasanton, California. Gatan will provide preventive maintenance and repair services for a BioContinuum system with K3 direct electron detector and energy filter mounted on a Titan Krios G4 microscope, and an Alpine Vista direct electron detector on a Talos Arctica microscope. Services include unlimited telephone technical support (Monday–Friday, 7:00 a.m. to 4:30 p.m. local time, excluding Federal holidays), one annual preventive maintenance visit per system with calibration, inspection, testing, and software updates by factory-certified technicians, and unlimited on-site repair service calls. Response time requirements include 48-hour resolution for routine and emergency calls. The originating solicitation was posted July 24, 2026, with proposals due August 10, 2026.