Millennium Space Systems, Inc.
El Segundo, CA Part of The Boeing Company
- UEI
- QFT4X9HPW4J1
- CAGE
- 3AWJ4
- Primary NAICS
- 336414 Guided Missile and Space Vehicle Manufacturing
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
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Its parent company, The Boeing Company, ranks:
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
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- 336411 Aircraft Manufacturing
- 336419 Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing
- 481212 Nonscheduled Chartered Freight Air Transportation
- 541330 Engineering Services
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- Corporate family
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Parent
The Boeing Company · Arlington, VA
NU2UC8MX6NK1
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Parent
The Boeing Company · Arlington, VA
NU2UC8MX6NK1
- SAM.gov registration date
- Physical address
- 2265 E El Segundo Blvd, El Segundo, CA 90245, USA
- Website
- millennium-space.com
- Founded
- 2001
- Employees
- 251-1K
- Estimated annual revenue
- $100M-$250M
- Industry
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- Industrials
- Capital Goods
- Aerospace & Defense
- SIC code
- 37 Transportation Equipment
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $59,700,107 |
| FY2025 | $272,195,871 |
| FY2024 | $306,283,074 |
| FY2023 | $22,492,079 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Air Force | $55,397,629 | |
| 2 | National Aeronautics and Space Administration | $4,301,978 | |
| 3 | Missile Defense Agency | $500 |
Contract vehicles
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
About the company
Millennium Space Systems, Inc., a wholly owned subsidiary of The Boeing Company based in El Segundo, California, develops and manufactures spacecraft, advanced satellite systems, and missile warning and space domain awareness technologies for the Department of Defense and NASA as a prime contractor with no set-aside designations. The vendor operates exclusively as a prime across 41 federal awards valued at $4.39 billion in combined potential ceiling value, with $894.7 million obligated to date. No subcontractor footprint appears in the source data.
The Space and Missile Systems Center dominates Millennium's customer base by both award volume and dollar value. The Center accounts for 11 awards (27% of the total portfolio) representing $2.65 billion in combined potential value — nearly 60% of all dollars across the entire vendor award portfolio. Two of those awards anchor the portfolio: a $386.5 million Other Transaction Agreement for Medium Earth Orbit Missile Track Custody Epoch 1 Space Vehicles 7-12 (awarded September 30, 2024, with ultimate completion December 31, 2033) and a $218.8 million OTA for Space Vehicles 4-6 (awarded August 21, 2023, running through December 31, 2032). A third Space and Missile Systems Center award, an IDIQ with an $1.843 billion ceiling effective April 8, 2026, establishes Millennium as a prime contractor to define, design, and build technologies and space-based systems for the Space Domain Awareness mission area through April 8, 2036. NASA Ames Research Center (5 awards, $214.4 million combined potential value) ranks second; the source names a $37.8 million cost-plus-fixed-fee definitive contract awarded October 1, 2022, for mission operations support, payload operations, configuration management, ground software development, systems engineering, and test automation for the Aquilla II spacecraft, with subcontractors CEB Metasystems, Infinity Systems Engineering, and Symetricore performing elements of operations support, configuration management, and system validation. The Air Force (including the Air Force Materiel Command and Air Force Space Command) and the Defense Advanced Research Projects Agency round out the top-five customer set.
Millennium holds three principal parent vehicles. The Missile Defense Agency's Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) multiple-award IDIQ, with a $151 billion ceiling running through December 28, 2035, was awarded December 29, 2025, and establishes Millennium as a prime contractor for multi-domain defense system development, prototyping, systems engineering, weapon design, production, and test across classified and unclassified work. An initial $500 delivery order under SHIELD was issued on the same date. The Air Force Materiel Command's Test and Evaluation Technologies for Ranges, Armaments and Spectrum II (TETRAS II) IDIQ carries a $999.95 million ceiling through June 29, 2028, and includes a $1 million delivery order awarded July 18, 2023, for test and evaluation support at Eglin Air Force Base. The Space and Missile Systems Center's Space Domain Awareness IDIQ (noted above) completes the set. Recent awards also include a $477.8 thousand Air Force OTA for the MIDAS Program (Millennium Space Systems Infrared Satellites for Defense Acceleration Studies) dated December 3, 2025, and a $100 thousand Space and Missile Systems Center delivery order for concept development, dated April 28, 2026.
Activity velocity is mixed. The vendor recorded one award in 2022, three in 2023, two in 2024, three in 2025, and two in 2026 year to date — a pattern consistent with long-cycle spacecraft development and constellation build programs rather than a sustained procurement pipeline. Only two awards face ultimate completion in the next twenty-four months, carrying $37.9 million in combined potential value and representing modest recompete exposure given the dominance of multi-year OTAs and IDIQs extending through 2031–2036. Millennium's work concentrates in guided missile and space vehicle manufacturing (NAICS 336414 and related codes) and Department of Defense R&D services across experimental development, applied research, and basic research activities. The vendor operates in the full-and-open market without set-aside designations, competing directly against peers in defense and national security space sectors.
Quick answers
Is Millennium Space Systems, Inc. registered in SAM.gov?
Yes. Millennium Space Systems, Inc.'s SAM.gov registration is active through August 26, 2027.
Which contract vehicles does Millennium Space Systems, Inc. hold?
Millennium Space Systems, Inc. holds a place on 4 federal contract vehicles, including SHIELD and TETRAS II.
How much has Millennium Space Systems, Inc. received in federal contracts?
Federal contracts obligated $272,195,871 to Millennium Space Systems, Inc. in fiscal year 2025 and $660,671,131 in fiscal years 2023 through 2027.
How does Millennium Space Systems, Inc. rank among federal contractors?
Millennium Space Systems, Inc.'s parent company, The Boeing Company, ranked #1 at the Department of the Air Force, #2 at the National Aeronautics and Space Administration and #2 in PSC AR in FY2025.
What is Millennium Space Systems, Inc.'s most recent federal award?
Millennium Space Systems, Inc.'s most recent federal contract award is Concept development minimum guarantee (FA881926FB013), from Space and Missile Systems Center (AFSPC), on April 28, 2026.
On GovTribe
See Millennium Space Systems, Inc.'s full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
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