This is a Sources Sought notice for market research on a follow-on building maintenance contract to support the SATCOM Milstar campus at Offutt Air Force Base, Nebraska. The contract will cover comprehensive operation, maintenance, repair, and inspection of all infrastructure, systems, and grounds at B1500. The government is seeking input to determine if the acquisition should be set aside for small businesses under FAR Part 19. Responses are due by 30 June 2026, and capability packages must not exceed 20 pages. No budget amount is specified.