STS International, Incorporated
Arlington, VA
- UEI
- UJFKCLX9JBG1
- CAGE
- 1ELF0
- Primary NAICS
- 541330 Engineering Services
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
-
- 334111 Electronic Computer Manufacturing
- 334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing
- 334210 Telephone Apparatus Manufacturing
- 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
- 334290 Other Communications Equipment Manufacturing
- 334419 Other Electronic Component Manufacturing
- 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- 334519 Other Measuring and Controlling Device Manufacturing
Show all 41
- 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing
- 336992 Military Armored Vehicle, Tank, and Tank Component Manufacturing
- 339999 All Other Miscellaneous Manufacturing
- 423430 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers
- 423610 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
- 423690 Other Electronic Parts and Equipment Merchant Wholesalers
- 423850 Service Establishment Equipment and Supplies Merchant Wholesalers
- 488390 Other Support Activities for Water Transportation
- 488991 Packing and Crating
- 517111 Wired Telecommunications Carriers
- 517410 Satellite Telecommunications
- 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
- 541340 Drafting Services
- 541420 Industrial Design Services
- 541511 Custom Computer Programming Services
- 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
- 541713 Research and Development in Nanotechnology
- 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
- 561320 Temporary Help Services
- 561612 Security Guards and Patrol Services
- 561621 Security Systems Services (except Locksmiths)
- 561990 All Other Support Services
- 611420 Computer Training
- 611430 Professional and Management Development Training
- 611710 Educational Support Services
- 811210 Electronic and Precision Equipment Repair and Maintenance
- SAM.gov registration date
- Physical address
- 1225 S Clark St #405, Arlington, VA 22202, USA
- Website
- stsint.com
- Founded
- 1993
- Employees
- 51-250
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- Civil Engineering
- SIC code
- 87 Engineering & Management Services
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 | $71,907,089 |
| FY2025 | $137,069,148 |
| FY2024 | $6,392,953 |
| FY2023 | -$228,208 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $57,182,596 | |
| 2 | Department of the Army | $10,991,105 | |
| 3 | Defense Logistics Agency | $3,732,888 | |
| 4 | Missile Defense Agency | $500 |
Contract vehicles
- C5ISR Gateway to Sustainment
- Global Tactical Advanced Communication System II
- Joint Enterprise Contracted Logistics and Services Support Class II 2023 - 2027
- Joint Enterprise Research Development Acquisition and Production-Procurement
- Multiple Award Schedule
- One Acquisition Solution for Integrated Services Plus - Total Small Business
- Scalable Homeland Innovative Enterprise Layered Defense
- Seaport Next Generation
- The Professional Services Schedule
Expired vehicles (8)
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| New delivery order | Land and Maritime (DLA) | $853,815 | |
| Combat field services equipment team OCONUS in support of the statement of work. | ACC Aberdeen Proving Ground | $600,000 | |
| TAT | ACC Aberdeen Proving Ground | $2,146,055 | |
| Installation kit, EL niin 015907962 | Land and Maritime (DLA) | $845,508 | |
| TAT other direct costs | ACC Aberdeen Proving Ground | $130,169 |
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Mag Aerospace | Tinton Falls, NJ | 541330 Engineering Services |
| Anglicotech, LLC | Arlington, VA | 541512 Computer Systems Design Services |
| Pideso | California, MD | 541330 Engineering Services |
| Digiflight Incorporated | Columbia, MD | 541330 Engineering Services |
| Cambridge International Systems, Inc. | Vienna, VA | 541330 Engineering Services |
About the company
STS International, Incorporated, a veteran-owned engineering and technical services firm headquartered in Arlington, Virginia, operates as a prime contractor supplying specialized electronic components, mechanical equipment, and field support services to the Department of Defense and Army agencies on full-and-open competitive contracts without set-aside designation. The company competes across defense supply and sustainment vehicles, holding strategic positions on the $3.2 billion C5ISR Gateway to Sustainment (G2S) multiple-award contract, the $906.57 million Joint Enterprise Contracted Logistics and Services Support Class II (JE-CLASS II) contract, the $151 billion Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) IDIQ awarded in December 2025, and the OASIS+ Small Business Multiple Award Contract.
STS International's customer base concentrates in Army and Navy supply and sustainment. By award count, the top five funding offices account for 53% of recent awards, led by Naval Supply Systems Command (25 awards, $171.6 million combined potential value), Army Communications Electronics Command (19 awards, $3.21 billion combined potential value), Program Executive Office for Combat Support and Combat Service Support (10 awards, $68.8 million combined potential value), Naval Sea Systems Command (8 awards, $23.3 million combined potential value), and Army Contracting Command Aberdeen Proving Ground (7 awards, $1 billion combined potential value). The dollar concentration diverges: by potential value, the top five customer offices account for 92% of combined value, anchored by Joint Program Executive Office for Chemical and Biological Defense ($10.18 billion across 7 awards), PEO Command Control Communications-Tactical ($5.17 billion across 3 awards), and Communications Electronics Command. The divergence reflects the SHIELD award of $151 billion in December 2025 and other large IDIQ positions captured by smaller award counts.
STS International's capability portfolio centers on supplying discrete technical components for Army C5ISR sustainment. Representative work includes a $31.3 million delivery order from Naval Supply Systems Command in December 2025 for circuit card assembly manufacturing, a $24.5 million delivery order in July 2025 for circuit card assemblies, an $18.66 million delivery order in November 2025 for analyzer modules, and an $8.74 million delivery order in August 2025 for centrifugal pump supply — all under G2S. The company also provides field support services, including a $2.72 million combat field service equipment team support services delivery order in June 2025 for CONUS technical and logistics support, a $1.8 million delivery order in June 2025 for fielded equipment support OCONUS, and a $600,000 delivery order in June 2026 for combat field services equipment team support OCONUS. Under G2S, individual delivery orders span power supplies, antennas, antenna control subsystems, refrigeration compressors, rotary pumps, electronic components, servoactuator assemblies, dynamic seals, gyroscope controls, magnetometers, and TPQ-53 radar system components, with firm fixed-price structures predominating and performance locations across Virginia, Massachusetts, Pennsylvania, New York, Texas, Michigan, New Jersey, Florida, and Canada.
Award activity grew sharply — 7 awards in 2024 to 37 in 2025 — driven by task-order placement under existing IDVs, particularly G2S, which carries 42 task orders for $189.7 million in combined potential value. The 2025 surge reflects the accumulation of Naval Supply Systems Command and Communications Electronics Command delivery orders placed between May and December 2025. Within the next twenty-four months, 24 awards with combined potential value of $105.7 million reach ultimate completion and face recompete. STS International operates 100% as a prime contractor with no sub-award footprint in the source data, though the vendor does subcontract to other primes when engaged as a subcontractor outside the scope shown here.
The company's award portfolio is concentrated in electronic component manufacturing (43 awards across the NAICS base) and engineering services (31 awards), with supporting activity in communications equipment manufacturing, navigation and guidance systems, and research and development. The GSA Schedule labor portfolio spans 122 categories, with hourly rates ranging from $43.44 (warehouse specialist) to $249.99 (security systems maintenance operator), covering logistics, CAD, movement coordination, technical specialties, and anti-terrorism officer roles — no security-cleared positions are offered. Service Contract Inventory records show minimal SCI-reportable activity: zero invoiced revenue as a prime contractor through FY2024 and negligible FTE trajectory, indicating that most STS International work is goods procurement rather than labor-intensive service contracts above the SCI reporting threshold.
SBA capabilities narrative
STS provides security solutions and training solutions for the Department of Defense.
Quick answers
Is STS International, Incorporated registered in SAM.gov?
Yes. STS International, Incorporated's SAM.gov registration is active through September 17, 2027.
Which contract vehicles does STS International, Incorporated hold?
STS International, Incorporated holds a place on 17 federal contract vehicles, including G2S, GTACS II and JE-CLASS II.
How much has STS International, Incorporated received in federal contracts?
Federal contracts obligated $137,069,148 to STS International, Incorporated in fiscal year 2025 and $215,140,982 in fiscal years 2023 through 2027.
How does STS International, Incorporated rank among federal contractors?
STS International, Incorporated ranked #3 in PSC 4130, #3 in PSC 5996 and #3 in NAICS 334419 in FY2025.
What is STS International, Incorporated's most recent federal award?
STS International, Incorporated's most recent federal contract award is New delivery order (SPRBL126F0139), from Land and Maritime (DLA), on July 24, 2026.
On GovTribe
See STS International, Incorporated's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors