# Sole Source Notice of Intent - Unisys System Services Canonical: https://abierto.us/opportunities/842674820 - Solicitation number: 842674820 - Notice type: Presolicitation - Status: Open. Offers due October 14, 2026 at 9:00 AM EDT - Department: Department of Defense - Agency: Defense Information Systems Agency - Contracting office: IT Contracting Division - PL84 (HC1084) - NAICS: 541519 Other Computer Related Services - Product or service code: DA10 Support services, delivered as a service contract (SaaS or Subscription) involved with the analysis, design, development, code, test and release packaging services associated with application development projects, as well as off-the-shelf Business software. - Place of performance: Scott AFB, Illinois - County: St. Clair County (FIPS 17163). https://abierto.us/counties/st-clair-county-il-17163 - City: Scott AFB. https://abierto.us/cities/scott-afb-il-1768328 - First posted: September 29, 2026 - Last posted: September 29, 2026 - SAM.gov: https://sam.gov/workspace/contract/opp/c1d244e1113845169249e8351a84b96d/view ## Description The Defense Information Systems Agency (DISA)/Defense Information Technology Contracting Organization (DITCO) intends to negotiate a sole source contract with Science Applications International Corporation (SAIC) for commercial Unisys System Services. A sole source Justification & Approval document is being coordinated and, upon approval, a copy of it will be posted here on SAM.gov to comply with the public display requirements of FAR 6.301. This acquisition will continue to provide DISA HaC with Unisys OS 2200 System Services currently being provided under contract number HC1084-23-D-0002, which expires on November 30, 2026. This procurement will provide DISA HaC the ability to supply Unisys OS 2200 System Services to the current strategic partner (SP) base, in excess of 3,000 users worldwide, utilizing Unisys OS 2200 applications that provide critical support to the warfighter. The scope of this effort will provide a complete managed service that includes flexibility and scope of services sufficient to meet current and future Unisys OS 2200 environment workloads, security, training, and modernization requirements, while ensuring DISA customers receive uninterrupted, continuous access to their applications and data. ## Attachments - [Sole Source NOI Unisys .docx](https://sam.gov/api/prod/opps/v3/opportunities/resources/files/5105672f50ee4e09a94d221ba8247d4f/download) ## Open now in the same industry 40 open in NAICS 541519. - CSO - USTRANSCOM Information Technology (IT) Enterprise Modernization (ITEM) Solutions (TRANSCOM25CSO001), due August 4, 2030 at 11:00 AM EDT. https://abierto.us/opportunities/transcom25cso001 - FCC OEA Optimization Request for Information (RFI) (RFI-FCC-OEA_Optimization), due October 12, 2026 at 5:00 PM EDT. https://abierto.us/opportunities/rfifccoeaoptimization - P8 MULTI MISSION (N0042127Q1008), due October 12, 2026 at 5:00 PM EDT. https://abierto.us/opportunities/n0042127q1008 ## Publications - September 29, 2026: Presolicitation, due October 14, 2026 at 9:00 AM EDT. Notice c1d244e1113845169249e8351a84b96d. https://sam.gov/workspace/contract/opp/c1d244e1113845169249e8351a84b96d/view ## Points of contact - Adam Venhaus, adam.m.venhaus.civ@mail.mil - Carmelyn Bryan, carmelynanne.bryan.civ@mail.mil --- Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/842674820.