STG LLC
Vienna, VA Part of Sos International LLC
- UEI
- UC4PNH5MVTF8
- CAGE
- 0XMZ5
- Primary NAICS
- 517410 Satellite Telecommunications
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Other
- Other NAICS codes in SAM.gov
-
- 492110 Couriers and Express Delivery Services
- 517111 Wired Telecommunications Carriers
- 517112 Wireless Telecommunications Carriers (except Satellite)
- 517121 Telecommunications Resellers
- 517810 All Other Telecommunications
- 541330 Engineering Services
- 541511 Custom Computer Programming Services
- 541512 Computer Systems Design Services
Show all 18
- 541513 Computer Facilities Management Services
- 541519 Other Computer Related Services
- 541611 Administrative Management and General Management Consulting Services
- 541620 Environmental Consulting Services
- 541690 Other Scientific and Technical Consulting Services
- 541930 Translation and Interpretation Services
- 561210 Facilities Support Services
- 561611 Investigation and Personal Background Check Services
- 561612 Security Guards and Patrol Services
- 561621 Security Systems Services (except Locksmiths)
- Corporate family
-
-
Parent
Reston, VA
L3VCKMD7J585
-
Parent
Reston, VA
L3VCKMD7J585
- SAM.gov registration date
- Physical address
- 2650 Park Tower Dr #300b, Vienna, VA 22180, USA
- Website
- sosi.com
- Founded
- 1989
- Employees
- 1K-5K
- Estimated annual revenue
- $500M-$1B
- Industry
-
- Industrials
- Commercial & Professional Services
- Professional Services
- Consulting
- SIC code
- 87 Engineering & Management Services
- 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 | -$530,432 |
| FY2025 | $7,519,844 |
| FY2024 | $13,988,110 |
| FY2023 | $14,146,777 |
Contract vehicles
- Alliant II
- Information Technology Schedule 70
- Multiple Award Schedule
- The Professional Services Schedule
Expired vehicles (16)
- Chief Information Officer - Solutions and Partners 3
- Network-Centric Solutions II
- Information Technology Enterprise Solutions 3 - Services
- Professional Engineering Services
- Enterprise Acquisition Gateway for Leading-Edge Solutions II
- SEC Program Management Offices Support Services
- Electronic Commodities Store III
- Information Technology Enterprise Solutions - 2 Services
- SeaPort-e
- Alliant
- SSC LANT Transport and Computing Infrastructure Support
- SSC LANT Integrated Cyber Operations Support
- SSC LANT Worldwide C4ISR Systems Support
- Enterprise Acquisition Gateway for Leading-Edge Solutions
- Army Technical Consulting Support Services 2010-2015
- Commerce Information Technology Solutions Next Generation
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Caci, Inc. - Federal | 70FA5024F00000100 | $49,800 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Flashpoint | McLean, VA | 513210 Software Publishers |
| Skopenow Inc. | New York, NY | 561611 Investigation and Personal Background Check Services |
| Extrac Ai LLC | New Castle, DE | 513210 Software Publishers |
| Digital Vertex Federal, LLC | Annapolis Junction, MD | 541519 Other Computer Related Services |
| Lookingglass Cyber Solutions, LLC | Baltimore, MD | 519290 Web Search Portals and All Other Information Services |
About the company
STG LLC is a private, family owned and operated government services integrator that provides specialized analytical services and IT solutions to the defense, intelligence, and law enforcement sectors. Through prime and subcontract awards, STG LLC supplies web monitoring technologies, obscura software licensing, and other tools to support deep/dark web analysis capabilities for federal agencies.
Specifically, STG LLC has received prime federal contract awards from the Department of Homeland Security's United States Secret Service to provide obscura software licensing and other deep/dark web analytical tools over a 5-year period from 2020-2025, with a total potential value of $1.8 million. These delivery orders were issued against the Alliant II Governmentwide Acquisition Contract and will support the Secret Service's law enforcement and security missions. Additionally, STG LLC has performed as a subcontractor to Peraton Inc. on awards for engineering services, although further details were not provided on those subcontracts. No set-aside designations were indicated for the prime or sub awards listed.
SBA capabilities narrative
SOFTWARE DEVELOPMENT, DATABASE MANAGEMENT, ERP, EC/EDI, INFORMATION ASSURANCE, INFOSEC, TELECOMMUNICATION SERVICES, SYSTEMS DESIGN AND INTEGRATION, ENGINEERING SERVICES, FACILITIES MANAGEMENT, OUTSOURCING, BUSINESS CONSULTING AND COMMERCIAL SERVICES.
Quick answers
Is STG LLC registered in SAM.gov?
Yes. STG LLC's SAM.gov registration is active through March 31, 2027.
Which contract vehicles does STG LLC hold?
STG LLC holds a place on 20 federal contract vehicles, including Alliant II, IT-70 and MAS.
How much has STG LLC received in federal contracts?
Federal contracts obligated $7,519,844 to STG LLC in fiscal year 2025 and $35,124,300 in fiscal years 2023 through 2027.
How does STG LLC rank among federal contractors?
STG LLC ranked #11 in PSC D302 and #82 in PSC D3 in FY2025.
What is STG LLC's most recent federal award?
STG LLC's most recent federal contract award is Obscura software license (deep dark web tool) (70US0920F2GSA0131), from Secret Service, on September 27, 2020.
On GovTribe
See STG LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors