This is a Sources Sought Notice for market research to identify potential small businesses, with an anticipated set-aside for Service-Disabled Veteran-Owned Small Businesses, capable of providing semi-annual preventive and emergency maintenance for specific MRI, CT, and PET scan chillers. The work is to be performed at the John Cochran Medical Center, St. Louis VA Medical Center. The required services include detailed semi-annual inspections, annual parts replacement, and 24/7 emergency remote and onsite response. No funds have been authorized or appropriated for this potential effort. Interested parties must provide a detailed capability statement and official authorization from Siemens to perform repairs and acquire parts.