S3 Aerodefense LLC
Glendale, WI
- UEI
- UEB8L4PX2VB7
- CAGE
- 966N9
- Primary NAICS
- 423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Partnership or Limited Liability Partnership
- Other NAICS codes in SAM.gov
- SAM.gov registration date
- Physical address
- 6101 N Baker Rd, Glendale, WI 53209, USA
- Website
- s3aerodefense.com
- Founded
- 2005
- Employees
- 51-250
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Industrials
- Capital Goods
- Aerospace & Defense
- SIC code
- 37 Transportation Equipment
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 | $500 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Air Force | $500 |
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| KC-46 commercial aircraft strategic parts exchange and repair | Air Force Sustainment Center (AFMC) | $500 |
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Beyond New Horizons, LLC | FA910124CB002 | $68,900 |
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About the company
S3 Aerodefense LLC, a Wisconsin-based limited liability partnership, operates as a prime contractor on Air Force depot-level repair and supply-chain work, holding a $470.978 million Indefinite Delivery Contract with the Air Force Sustainment Center for KC-46 commercial aircraft strategic parts exchange and repair through June 30, 2031. The vendor competes on full-and-open (no set-aside) basis and works under NAICS 336413 (Other Aircraft Parts and Auxiliary Equipment Manufacturing), with place of performance in River Hills, Wisconsin.
S3 Aerodefense's federal footprint centers on a single major customer and capability domain. The Air Force Sustainment Center accounts for 100% of the vendor's recent awards by potential value — $471 million across two awards: the $470.978 million IDIQ ceiling and an initial delivery order of $500 issued on July 1, 2026. The IDIQ, a multiple-award contract, requires S3 Aerodefense to maintain FAA and military type certifications and manage exchange of unserviceable parts for serviceable components across over 1,300 national stock numbers related to KC-46 aircraft systems. Performance standards mandate exchange within 30 days under normal conditions or within 2 days for aircraft-on-ground situations, along with repair, overhaul, procurement, stocking, deficiency reporting, and shelf-life management. The contract tracks under PSC Maint/Repair/Rebuild Of Equipment–Aircraft Components And Accessories.
Activity is nascent — one award in 2025, two in 2026 — with the majority of ceiling value uncommitted ($69 thousand obligated against $471 million potential). The vendor holds a single subcontract with Beyond New Horizons, LLC on a Test Operations and Sustainment II program for evaluation and repair of an Air Starter component, dated July 21, 2025. The recompete window extends to June 2031 with no imminent awards at risk. S3 Aerodefense operates in a specialized niche: depot-level aerospace parts logistics and overhaul for the Air Force KC-46 tanker program, with no documented work outside that platform or customer.
SBA capabilities narrative
DISTRIBUTION OF MILITARY AIRCRAFT COMPONENETS, ACCESSORIES, AND CERTIFIED REPAIR SERVICES.
Quick answers
Is S3 Aerodefense LLC registered in SAM.gov?
Yes. S3 Aerodefense LLC's SAM.gov registration is active through June 3, 2027.
What is S3 Aerodefense LLC's CAGE code?
S3 Aerodefense LLC's CAGE code is 966N9, and its Unique Entity ID (UEI) is UEB8L4PX2VB7.
How much has S3 Aerodefense LLC received in federal contracts?
Federal contracts obligated $500 to S3 Aerodefense LLC in fiscal years 2023 through 2027.
What is S3 Aerodefense LLC's most recent federal award?
S3 Aerodefense LLC's most recent federal contract award is KC-46 commercial aircraft strategic parts exchange and repair (FA810926FB022), from Air Force Sustainment Center (AFMC), on July 1, 2026.
On GovTribe
See S3 Aerodefense LLC's full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors