This is a sole-source opportunity for software maintenance services for SLICware and SSO Server products, intended for Integrated Support Systems (ISS) in Clemson, SC. The base period of performance runs from September 30, 2026, to September 29, 2027, with eight optional one-year extensions through September 29, 2029. No budget amount is specified. The work location is not explicitly stated, but the sole-source vendor is based in Clemson, SC. Interested parties may submit a capability statement for consideration, though the government intends to negotiate only with ISS.