SYSTEM DELTA 84 (SYD 84/MT) MEDIUM EARTH ORBIT MISSILE WARNING / MISSILE TRACKING EPOCH 3 and EPOCH 4, REQUEST FOR INFORMATION (RFI)

SPACE SYSTEMS COMMAND (SSC)

System Delta 84 (SYD 84/MT)

MEDIUM EARTH ORBIT MISSILE WARNING / MISSILE TRACKING

EPOCH 3 and EPOCH 4

**UPDATE** 8 September 2026**

The Government has made an update to the Response Date. The Updated Response Date is: 1 December 2026. The Inactive Policy will remain as "15 Days after Response Date."

**UPDATE** 21 August 2026**

The Government has made available via DoD SAFE transmissions the following documents to interested vendors (in good standing on SAM.GOV) who have contacted the Government POCs in this RFI:

• (CUI) MEO Epoch 3&4 Industry Day Briefing 07_22_2026
• (CUI) Epoch 3&4 Market Research RFI CUI Industry Day Q&A Document 08_20_2026
• (CUI) Instructions for the Release of Attachments to MEO Epoch 3&4 Market Research RFI 08_20_2026

Additionally, the Primary Point of Contact (Contracting Officer/Agreements Officer) has been updated, to Capt Kerry Kearschner, USAF. Email: contact@example.gov.

The following companies were added to the list of entities/contractors supporting SSC/SYD 84 and its affiliated government organizations: The Tech7 Company and Galaxia

If the respondent disagrees with the release of its RFI response to any of the aforementioned firms, the respondent must clearly state this restriction in the cover letter accompanying the RFI response.

**END OF UPDATE**

Description 

SSC requests industry feedback on a Resilient Missile Warning and Tracking (MWT) Medium Earth Orbit (MEO) layer Epochs 3 & 4 (E3&4) production feasibility that will support MWT Full Warfighting Capabilities (FWC). The government is seeking industry feedback to inform the MEO E3&4 acquisition strategy and technical approach. The MEO MWT architecture is being incrementally developed in capability-based deliveries called Epochs. Each Epoch is expected to include at least one competitive award and allows for insertion of new technology and innovative solutions in response to progressive or updated warfighter requirements to ultimately meet Overhead Persistent Infrared (OPIR) capability needs. This RFI requests industry feedback and approaches to support delivering a MEO MWT E3&4 capability. The government encourages capability providers to offer responses for individual or multiple elements of the system architecture:

• Epochs 3 & 4 Space Vehicles (E3&4 SVs) - delivery, integration, and operations
• MEO Ground - ground segment with facilities and sites to operate the entire MEO MWT constellation with respect to Command and Control (C2)
• Digital Engineering Integration in alignment with Government Digital Engineering vision

Contract Type  

The government is intending to use only Firm Fixed Price (FFP) contract type with an Other Transaction Authority (OTA) agreement. Feedback on this approach is welcome.

Small Business Consideration

The North American Industry Classification System (NAICS) code for this effort is 541715 -

Research and Development in the Physical, Engineering, and Life Sciences (except

Nanotechnology and Biotechnology). The small business size standard is 1,000 employees.

Participation from small and small disadvantaged businesses is encouraged. SSC's Small

Business points of contact can be reached at contact@example.gov or by phone at +1 (555) 000-0000. 

Small Business Opportunities

The government would like to encourage small business participation in the performance of this effort and requests insight into how your company would incentivize Small Business participation. 

1. Provide an assessment of potential subcontracting opportunities.  
2. Do you have any recommendations to increase small business participation under this effort? 
3. Is there a more appropriate NAICS code to advertise this effort to maximize competition in industry? 

Instructions to Responders

To receive the full RFI and additional supporting documentation, please send an email to the government POCs with the subject line “MEO Epochs 3 & 4 RFI – (company name)”.   

Include your organization’s pertinent information below: 

• Submitter's Name and Parent Company
• Mailing Address/Facility: Street address, city, state, and nine-digit zip code 
• Commercial and Government Entity (CAGE) Code 
• Unique Entity Identification (UEI)
• Point of Contact (POC) 
• POC Telephone number and email address 
• Prime or Sub Role
  •  If Prime, identify how your firm will meet requirements set forth in
    10 U.S.C. §4022 (A, B, or C)
  •  If sub, identify what capacity your firm will support and potential prime partnership (if known)

CUI information can/will only be sent to company POCs listed in the SAM.Gov database.  
To receive the classified information, please include in the initial contact a SIPR, JWICS or comparable email address where these documents can be sent. Requesting organizations must possess a facility clearance of at least SECRET, which will be verified prior to data release. The government is also willing to physically distribute content to requesting organizations (or divisions/sectors of organizations) without electronic classified means of communication once properly cleared by our security team and proper arrangements are made with our POCs below.  

Format For Response

SSC will endeavor to respond to all requests in the order they are received. All email responses to this RFI must include the subject line “MEO Epochs 3 & 4 RFI – (company name)”. All responses to this RFI should be provided as instructed in the RFI. Contact the POCs identified below for more information. 

(U) Government Representatives:

Mr. Jack Barnett – contact@example.gov

Ms. Lorene Avendaño – contact@example.gov

Mr. Archie Daquioag - contact@example.gov

Any information submitted by respondents to this RFI is strictly voluntary. The government encourages interested parties to submit the information requested for the applicable elements listed in the RFI by 31 October 2026 to the government points of contact listed.

Please monitor SAM.Gov for further updates.

DISCLAIMERS AND NOTES  

THIS IS A REQUEST FOR INFORMATION (RFI) ONLY. This RFI is issued solely for information and planning purposes; it does not constitute a Request for (Prototype) Proposal (RPP/RFP) or a promise to issue an RPP/RFP in the future. This request for information does not commit the government to contract for any supply or service whatsoever. Further, the government is not at this time seeking proposals and will not accept unsolicited proposals.  Responders are advised the U.S. Government will not pay for any information or administrative costs incurred in response to this RFI; all costs associated with responding to this RFI will be solely at the interested party’s expense. Not responding to this RFI does not preclude participation in any future RPP/RFP. The government will acknowledge receipt of all submissions but is under no obligation to provide feedback or integrate respondents’ contributions. 

All information in response to this RFI marked proprietary will be handled accordingly. The government shall not be liable for or suffer any consequential damages for any proprietary information not properly identified. Proprietary information will be safeguarded in accordance with applicable regulations. 

(U) SSC/SYD 84 and its affiliated government organizations have entered into contracts with the following entities:

• AirIn Technologies, Inc.
• Alpha 2, Inc.
• Alpha Omega Group (AoG)
• Altus LLC
• Amentum Services, Inc. (formerly CENTRA)
• Anduril
• Astrion
• Bryce Space & Technology, LLC
• Booz Allen Hamilton
• Custom Analysis LLC
• Emolbi, LLC
• Exigo
• ExoAnalytics
• Full Rev LLC
• GoLion Company
• Integrated Enterprise System Engineering Solutions (IESE)
• John Hopkins University Applied Physics Laboratory (JHU/APL)
• KBR
• MMAX, Inc.
• MTSI
• Parsons Corporation
• PL Consulting, Inc.
• Qualis Corporation
• SAVI LLC
• Science Applications International Corporation (SAIC)
• Sigmatech, Inc.
• Space Systems Integration, LLC
• Space Engineering and Acquisition Systems (Space EA Systems)
• Stellar Solutions
• Strategic Analysis, Inc.
• Strategic Engineering Solutions, LLC
• Tecolote Research
• TEC Solutions, LLC
• The Aerospace Corporation
• The Institute for Defense Analyses (IDA
• The MITRE Corporation
• The Stacia Group, LLC
• QuantiTech Services

These companies support the government’s Space Force program office by performing technical reviews, systems engineering and integration analyses, cost estimation, and other advisory services. The government hereby notifies respondents that it will provide all responses to its support contractors for their services to the U.S. Space Force. If the respondent disagrees with the release of its RFI response to any of the aforementioned firms, the respondent must clearly state this restriction in the cover letter accompanying the RFI response.

Foreign firms are advised they will not be allowed to participate in this acquisition at the prime contractor level; however, provided they are eligible to do business with the U.S. Government, they may be eligible to participate at the subcontractor level. The research and test data produced under a resultant contract may contain Military Critical Technology List (MCTL) information whose export is restricted by Export Control Act (Title 22, U.S. Sec 2751, et seq.) or the Export Administration Act of 1979, as amended (Title 50, U.S.C., App. 2401, et seq.). Request certification and registration from the Defense Logistics Services Center (DLSC), Federal Center, 74 North Washington, Battle Creek, MI 49016-3412 as soon as possible.