https://www.gsa.gov/technology/it-contract-vehicles-and-purchasing-programs/multiple-award-schedule-it/software-maintenance-services
Software Maintenance Services | GSA
Federal agencies can enhance software performance with GSA’s software maintenance services, including customization, integration, and implementation.
software maintenance servicesgsa
https://acquaintsoft.com/support-maintenance-services
Application Support & Maintenance Services for Business Software
services for businessapplication supportmaintenancesoftware