Amendment 6: Update Finance and Security to estimated CY26Q3 estimated Solicitation Release Date, and Engineering to CY26Q4 estimated Solicitation Release Date. GSA eBuy! Reference RFI1817792. Amendment 5: Update Acquisition Support NAICS and GSA SIN to 541611 and 541219 and update the title and size standards. Amendment 4: Update RFQ for Acquisition Support as it was released on GSA eBuy! (RFQ1803800) on 01 April 2026 with due date of 04 May 2026 at 4:00PM PST; reorganize order of release from Security, Engineering, Finance to Finance, Engineering, Security; and updated estimated release quarters to CY2026Q2 for Financial Management Support, and CY2026Q3 for Engineering Support and Security Support. Amendment 3: The estimated release date for the SSSV Acquisition Support BPA RFQ only has been updated to be released on Calendar Year 2026, Quarter 1. Amendment 2: The estimated release date for the SSSV Acquisition Support BPA RFQ only has been updated to be released on Calendar Year 2025, Quarter 4. Amendment 1: The overview paragraph mentioned released of the remaining four (4) SSSV BPAs on Calendar Year 2025 (CY2025). This is now corrected to say Calendar Year 2026 (CY2026), consistent with the description of the remaining BPAs. This is a SPECIAL NOTICE to provide updates on the six (6) Strategic Services Vehicle program Commercial Advisory and Assistance Support (A&AS) services BPA Constellations as a follow-up to the Request for Information (RFI) announcement, “SSC Strategic Services Vehicle BPA Constellation Program”, reference RFQ#1789666 posted on 15 December 2025. Disclaimer THIS IS FOR INFORMATION PURPOSES ONLY. This notice is issued solely for information and planning purposes – it does not constitute a Request for Quotes (RFQs) or Request for Proposals (RFPs), nor does this information commit the Government to contract for any supply or service whatsoever. Further, the Government is not seeking quotes/proposals at this time and will not accept unsolicited proposals. The Government will not entertain questions pertaining to the announcement now, nor any future acquisition for Space Systems Command’s (SSC’s) requirements. The Government will provide updated information once available and will be posted on GSA eBuy for industry awareness. Overview The United States Space Force (USSF) Space Systems Command, Enterprise Sourcing Division (SSC/PKA) has released three (3) Request For Quotes (RFQs) of the six (6) projected Commercial SSSV Constellation Blanket Purchase Agreements (BPAs): Administrative Support, Cybersecurity Support, and Acquisition Support. SSC/PKA projects to release the remaining three (3) Commercial solicitation during calendar year 2026 (CY2026) for: Financial Management Support, Engineering Support, and Security Support. All RFQs will be posted on GSA eBuy only, and a Special Notices For Information Purpose Only regarding the posted solicitations on eBuy to each respective BPA will be posted on SAM.gov to inform industry of potential teaming or subcontract opportunities and encourage Teaming or Subcontract Arrangements with General Services Administration (GSA) Multiple Award Schedule (MAS) Holders. Below are the remaining three (3) projected SSSV program Constellation BPA timeline for the release of RFQs to establish multiple BPAs for each of the constellations outlined in the RFI against the GSA MAS program, also known as the GSA Federal Supply Schedules (FSS). The Government’s objective is to release the next in line projected RFQ, Finance Management Support, in CY2026 Quarter 3 (Q3). Below are the remaining projected Constellations in the likely order of release and with their planned details for planning purpose only. The Government does not have a specific RFQ date, we are aiming for a release in CY2026. Note: The order and details outlined below are projections and for information purpose only. No information or order of issuance herein will commit the Government. GSA MAS holders must have the correct NAICS and Category incorporated into their schedule to be eligible for award, so prospective issuers should review their NAICS compliance. Acquisition Support Magnitude of Work: $188M Small Business Set-Aside: 100% Socioeconomic Set Aside – Service-Disabled Veteran-Owned Small Business (SDVOSB) NAICS & Size Standard: 541611 Administrative Management and General Management Consulting Services, $24.5M; and 541219 Other Accounting Services, $25M PSC/FSC: R499, Support – Professional: Other GSA SIN: 541611, 541219 Potential Maximum Number of Awardees: up to Five (5) Contract Type: Multiple-Award BPA, FFP Services: Commercial A&AS Services Estimated RFQ Release: Proposals have closed on 04 May 2026 Financial Management Support Magnitude of Work: $47M Small Business Set-Aside: 100% Socioeconomic Set Aside – Service-Disabled Veteran-Owned Small Business (SDVOSB) NAICS & Size Standard: 541219 Other Accounting Services, $25.0; and 541519 Other Computer Related Services, $34M PSC/FSC: R499, Support – Professional: Other GSA SIN: 54151S, 541219 Potential Maximum Number of Awardees: up to Five (5) Contract Type: Multiple-Award BPA, FFP Services: Commercial A&AS Services Estimated RFQ Release: CY26Q3 Security Support Magnitude of Work: $132M Small Business Set-Aside: 100% Socioeconomic Set Aside – Woman Owned Small Business (WOSB) NAICS & Size Standard: 541519 Other Computer Related Services, $34M PSC/FSC: R499, Support – Professional: Other GSA SIN: 54151S, 611420, 54151HACS Potential Maximum Number of Awardees: up to Five (5) Contract Type: Multiple-Award BPA, FFP Services: Commercial A&AS Services Estimated RFQ Release: CY26Q3 (End of Q3) Engineering Support Magnitude of Work: $50M Small Business Set-Aside: 100% Socioeconomic Set Aside – Woman Owned Small Business (WOSB) NAICS & Size Standard: 541330 Engineering Services, $25.5 PSC/FSC: R499, Support – Professional: Other GSA SIN: 541330ENG Potential Maximum Number of Awardees: up to Five (5) Contract Type: Multiple-Award BPA, FFP Services: Commercial A&AS Services Estimated RFQ Release: CY26Q4