Tyonek Services Overhaul Facility-Stennis, LLC
Kiln, MS Part of Tyonek Services Group, Inc.
- UEI
- L5DVJMYLFP94
- CAGE
- 7KWV2
- Primary NAICS
- 488190 Other Support Activities for Air Transportation
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- SBA certifications
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8(a) Program Participant– · Current
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
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- 236210 Industrial Building Construction
- 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- 336411 Aircraft Manufacturing
- 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing
- 336611 Ship Building and Repairing
- 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
- 541330 Engineering Services
- 541511 Custom Computer Programming Services
Show all 20
- 541512 Computer Systems Design Services
- 541513 Computer Facilities Management Services
- 541519 Other Computer Related Services
- 541611 Administrative Management and General Management Consulting Services
- 541614 Process, Physical Distribution, and Logistics Consulting Services
- 541690 Other Scientific and Technical Consulting Services
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 541990 All Other Professional, Scientific, and Technical Services
- 561210 Facilities Support Services
- 611420 Computer Training
- 611430 Professional and Management Development Training
- 611512 Flight Training
- Corporate family
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-
Parent
UBL2AXJNYY64
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Parent
UBL2AXJNYY64
- SAM.gov registration date
- Physical address
- 7095 Roscoe-Turner Rd, Kiln, MS 39556, USA
- Website
- tyonek.com
- Employees
- 251-1K
- Estimated annual revenue
- $100M-$250M
- Industry
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- Industrials
- Capital Goods
- Aerospace & Defense
- SIC code
- 38 Instruments & Related Products
- 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 | $12,609,158 |
| FY2025 | $62,861,558 |
| FY2024 | $52,649,880 |
| FY2023 | $66,381,420 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $6,307,070 | |
| 2 | Air Force | $3,644,328 | |
| 3 | Department of the Army | $2,657,760 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Aircraft Readiness Alliance II, LLC | Anchorage, AK | 336411 Aircraft Manufacturing |
| Mercy Health Systems | Wichita, KS | 561110 Office Administrative Services |
| STS Systems Defense LLC | San Antonio, TX | 541330 Engineering Services |
| Red Peak Technical Services, LLC | Anchorage, AK | 561621 Security Systems Services (except Locksmiths) |
| CNI Aviation Advantage, A Joint Venture, LLC | Norman, OK | 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing |
About the company
Tyonek Services Overhaul Facility-Stennis, LLC, a Kiln, Mississippi-based subsidiary of Tyonek Services Group, Inc., provides aircraft maintenance, modification, logistics, and overhaul services to Department of Defense agencies as a prime contractor under the SBA 8(a) Program. The firm is an Alaskan Native Corporation-owned, minority-owned small disadvantaged business with 8(a) certification expiring April 17, 2027, competing predominantly under 8(a) sole-source and competitive set-asides across a $865.2 million award portfolio concentrated in aviation depot-level work and contractor logistics support.
The vendor's customer concentration is extreme and skewed to Naval Air Warfare Center dominance. The top five funding agencies account for 83% of combined potential value, led by the Naval Air Systems Command Naval Air Warfare Center with 36 awards totaling $385.8 million—more than half of Tyonek's entire portfolio. The Department of the Air Force Materiel Command (13 awards, $119.6 million), Air Force Materiel Command Lifecycle Management Center at Robins AFB (11 awards, $105.7 million), Army Training and Doctrine Command (2 awards, $53.5 million), and Naval Air Systems Command proper (1 award, $51.3 million) round out the active set. The concentration by customer count and by dollar value track closely, indicating NAVAIR's dominance spans both volume and magnitude.
Four large indefinite delivery contracts anchor the prime vehicle position. The Naval Air Warfare Center holds a $100 million IDC (single-award, 8(a) sole source, through November 2026) generating 19 task orders at $95.3 million combined potential value for logistics support services across C-5M, C-130H, MV-22, AH-64, and E-9A platforms. The same customer also holds an $18.4 million IDC (single-award, no set-aside, expired June 2024) for E-9A Contractor Logistics Support, with 22 task orders at $59.1 million combined potential value and another contract valued at $90.5 million with 15 task orders. Air Force Lifecycle Management Center at Robins holds a $67.77 million IDC (8(a) sole source, through March 2026) for C-130H Electronic Propeller Control System and NP2000 propeller installation modifications, with six task orders at $18 million combined potential value. Army Training and Doctrine Command holds a $38.9 million IDC (8(a) sole source, through August 2027) for aircraft maintenance and logistics to the 128th Aviation Brigade at Fort Eustis, with two task orders generating $53.5 million combined potential value. Representative delivery orders include a $19.6 million Marine Corps modification for MV-22 Osprey corrective maintenance services extending through July 2026, a $51.3 million Competitive 8(a) Naval Air Systems Command contract for contractor maintenance support at Fleet Readiness Center Mid-Atlantic in Patuxent River (cost-plus-fixed-fee, five-year definitive, through July 2027), a $5.2 million Air Force delivery order for C-130H propeller modifications, and recent 2025–2026 work on C-5M pylon hydraulic check valve kits ($1.3 million, 8(a) sole source), EBPR kits ($4.1 million, 8(a) sole source), and LED lighting kits ($1.6 million, 8(a) sole source).
Activity trajectory shows volatility. Awards per year peaked at 20 in 2022, declined to 15 in 2023 and 11 in 2024, then rebounded to 12 in 2025, with 1 award recorded in 2026 to date. Fourteen awards (combined potential value $163.2 million) face ultimate completion within the next twenty-four months, representing material recompete exposure—particularly the four large IDVs that anchor the Naval Air Warfare Center and Air Force Materiel Command relationships.
SCI-reported invoicing across federal service contracts shows $71.2 million captured from FY2022 through FY2024: $18.3 million in FY2022 (58.2 FTEs), $32.8 million in FY2023 (171 FTEs), and $20 million in FY2024 (50.9 FTEs). FTE and revenue volatility—a spike in FY2023 followed by contraction in FY2024—tracks the IDV award pace. Across SCI-reportable prime contracts, the vendor self-performed the majority of work; subcontractors accounted for an average 36% share of contractor hours, with 12 named subcontractors reported. Government-paid hourly rates on prime labor ranged from $26.21/hr (10th percentile) to $538.89/hr (90th percentile), with a median of $152.81/hr, indicating a labor mix spanning technicians, engineers, and management-level support personnel.
Teaming partners include L3Harris Technologies, Collins Aerospace, and Vectrus Systems, which appear recurrently on task orders for avionics integration, aviation support materials, and logistics services. Additional subcontractors include Precision Aviation Group for aircraft component repair and overhaul, Northrop Grumman Systems for installation services, and CAE USA for training center support. The vendor operates primarily from Kiln, Mississippi, with secondary performance locations at Robins Air Force Base, Georgia; Patuxent River, Maryland; Morrisville, North Carolina; and various overseas sites supporting Foreign Military Sales training and operations. The firm's capability footprint centers on depot-level aircraft maintenance and modification for legacy military transport and rotary-wing platforms, contractor logistics support for peacetime and operational aircraft fleet sustainment, and Foreign Military Sales labor and training services, all rooted in 8(a) set-aside relationships that dominate both the sole-source and competitive pipeline.
SBA capabilities narrative
Full service FAA Part 145 Aviation MRO facility performing maintenance, modification, and repair on fixed and rotary wing DOD and civil aircraft. Specializing in the integration of glass cockpit, avionics & radar upgrades, EPCS, and NP2000 modifications.
Quick answers
Is Tyonek Services Overhaul Facility-Stennis, LLC registered in SAM.gov?
Yes. Tyonek Services Overhaul Facility-Stennis, LLC's SAM.gov registration is active through March 10, 2027.
Which SBA certifications does Tyonek Services Overhaul Facility-Stennis, LLC hold?
Tyonek Services Overhaul Facility-Stennis, LLC holds 8(a) Program Participant certification from the SBA.
How much has Tyonek Services Overhaul Facility-Stennis, LLC received in federal contracts?
Federal contracts obligated $62,861,558 to Tyonek Services Overhaul Facility-Stennis, LLC in fiscal year 2025 and $194,502,016 in fiscal years 2023 through 2027.
How does Tyonek Services Overhaul Facility-Stennis, LLC rank among federal contractors?
Tyonek Services Overhaul Facility-Stennis, LLC ranked #20 in PSC J016, #21 in PSC J015 and #22 in NAICS 48819 in FY2025.
What is Tyonek Services Overhaul Facility-Stennis, LLC's most recent federal award?
Tyonek Services Overhaul Facility-Stennis, LLC's most recent federal contract award is The purpose of this task order is to install pylon hydraulic check valve (phcv) modification kits on three (3) C5-m… (FA852526FB004), from AFLCMC Robins AFB, on May 15, 2026.
On GovTribe
See Tyonek Services Overhaul Facility-Stennis, LLC's full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors