Sos International LLC

Reston, VA Part of Sos International LTD

UEI
L3VCKMD7J585
CAGE
6QG06
Primary NAICS
541990 All Other Professional, Scientific, and Technical Services
SAM.gov registration
Active through

Company facts

Self-certified in SAM.gov
  • For Profit Organization
  • Limited Liability Company
Entity structure
Corporate Entity (Not Tax Exempt)
NAICS codes registered in SAM.gov
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Corporate family
SAM.gov registration date
Physical address
1881 Campus Commons Dr #500, Reston, VA 20191, USA
Website
sosi.com
Founded
1989
Employees
1K-5K
Estimated annual revenue
$500M-$1B
Industry
  1. Industrials
  2. Commercial & Professional Services
  3. Professional Services
  4. 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 .

Recent federal awards

Sos International LLC's 5 most recent federal contract and grant awards, newest first. Amounts are dollars obligated.
Award Agency Obligated Awarded
This task order is for skip tracing services for enforcement and removal operations Contract · 70CDCR26FR0000068 Immigration and Customs Enforcement $4,926,679
DHS/DOJ process optimization Contract · 70RDA226FR0000033 Office of Procurement Operations $1,191,383
Title: sosi linguist services - option year 3 Contract · 15DDHQ26F00000486 Drug Enforcement Administration $3,209,046
The purpose of this task order is to meet the IDIQ minimum requirement of 1000 cases for safety verification and… Contract · 70CDCR26FR0000097 Immigration and Customs Enforcement $3,921,464
Bureau wide language services Contract · 15A00026FAQA00054 Bureau of Alcohol Tobacco Firearms and Explosives $845,000

About Sos International LLC

Written by GovTribe AI ·

Sos International LLC, a Reston, Virginia–based government services integrator operating as a for-profit limited liability company, delivers linguist services, IT infrastructure support, investigative services, facilities management, and specialized operational support to federal agencies primarily as a prime contractor (98% of recent awards) competing on an unrestricted, full-and-open basis across both civilian and defense sectors. The vendor operates a corporate structure that includes parent holding Sos International LTD (Subchapter S Corporation) with five named subsidiaries: Defense Group LLC, Sosi Services LLC, New World Solutions LLC, Exovera LLC, and STG LLC, a manufacturer of goods subsidiary that signals diversified delivery capability beyond labor-based services.

Sos International's customer concentration is heavily skewed toward law-enforcement and immigration agencies. The Drug Enforcement Administration accounts for 531 awards ($300.1 million combined potential value) and dominates by count—the top five customers by award count (84% coverage) include DEA, Department of the Army European Command (45 awards, $147.7 million), Department of the Army Central Command (20 awards, $1.02 billion), Defense Information Systems Agency (18 awards, $711.5 million), and Executive Office for Immigration Review (16 awards, $2.24 billion). However, potential value concentration differs sharply: GSA Federal Acquisition Service leads by dollar magnitude (7 awards, $90.78 billion ceiling), followed by Department of State Bureau of Near Eastern Affairs (3 awards, $10.5 billion), Department of the Army Intelligence and Security Command (4 awards, $9.87 billion), EOIR (16 awards, $2.24 billion), and Air Forces Europe and Africa (10 awards, $1.18 billion). This divergence reflects Sos International's dominant position on high-value IDIQs and GWACs that underpin task-order pipelines.

Work portfolio composition is dominated by linguist services (564 awards across Translation and Interpretation Services NAICS 541930, plus 26 Transcription awards under Administrative Support PSC codes), with secondary exposure to IT infrastructure support (26 Computer Systems Design Services awards, 18 IT and Telecom PSC codes) and specialized investigative and operational support (13 Facilities Support Services, 56 Intelligence Support awards). Recent concrete prime work includes a $277.8 million delivery order from Immigration and Customs Enforcement for safety verification and wellness checks on unaccompanied alien children and former unaccompanied alien children (awarded June 18, 2026, firm fixed price through June 2027); a $100 million time-and-materials delivery order from Executive Office for Immigration Review for in-person, scheduled telephonic, and video remote interpretation services (awarded February 1, 2026, through January 31, 2027); a $138.3 million cost-plus-fixed-fee delivery order from the Bureau of South and Central Asian Affairs for all-inclusive operations, maintenance, and project support at Camp As-Sayliyah in Doha, Qatar (awarded October 1, 2024, through October 14, 2029); and a $125.9 billion delivery order from Executive Office for Immigration Review for language services spanning interpretation, translation, and transcription (awarded September 1, 2024, through January 31, 2026). On the IT side, a $22.1 million delivery order from the Army Chief Information Officer covers planning, creation, implementation, and maintenance of the Army Records Information Management System under the ITES-3S BPA (awarded February 29, 2024, base through February 2025 with three option years extending to August 31, 2028).

Sos International holds seat on multiple high-value government-wide vehicles. The OASIS+ Unrestricted IDIQ (General Services Administration, awarded December 17, 2024) carries a no-dollar-ceiling placeholder and extends through December 16, 2029; the vendor is actively ordering against this vehicle across civilian and defense agencies for professional services including IT, cybersecurity, engineering, language services, and advisory support. The Worldwide Expeditionary Multiple Award Contract TITUS (Naval Supply Systems Command, awarded October 1, 2025, through December 31, 2029) carries a $65 billion ceiling for humanitarian assistance, disaster relief, contingency operations, exercise support, and lodging and logistics across CONUS and Alaska. The Diplomatic Platform Support Services (DiPSS) IDIQ (State Department, awarded multiple task orders through 2029) supports facility and operational support at overseas diplomatic installations. The Emergency Detention and Related Services Strategic Sourcing Vehicle (Immigration and Customs Enforcement, awarded May 17, 2025, $145.6 million) provides detention operations, security, transportation, medical care, and detainee management. Sos International also holds single-award BPAs with DEA (Blanket Purchase Agreement for National Linguist Services, awarded April 1, 2026, $188.66 million through March 31, 2031) and a single-award IDIQ with EOIR for Language Interpretation Services (awarded February 1, 2026, $875 million ceiling through July 31, 2033). On the IT side, the Information Technology Enterprise Solutions 3 - Services (ITES-3S) IDIQ places multiple task orders for network engineering, system administration, and cybersecurity support to Army European Command and DISA supporting INDOPACOM and Mission Partner Environment operations. The U.S. Army Europe Security Guard Services BPA (August 19, 2024, $49.99 million through August 18, 2029) supports unarmed security guard services at installations throughout the European Area of Responsibility, including a $3.86 million call at Trophy Site Panzer Kaserne in Kaiserslautern, Germany (awarded January 21, 2025, through February 20, 2030).

Activity has remained relatively flat over the five-year source window—22 awards in 2022, 23 in 2023, 16 in 2024, 18 in 2025, and 7 in 2026 (partial year)—suggesting mature pipeline management without explosive growth. Ten awards carrying combined potential value of $445.2 million face ultimate completion within the next twenty-four months and represent near-term recompete exposure. SCI-reported invoiced revenue on federal service contracts above the $150,000 threshold shows growth: $95.9 million across 272 FTEs in FY2022, $72.2 million across 367 FTEs in FY2023, and $108.5 million across 832 FTEs in FY2024. This represents a partial view of the vendor's federal services portfolio (SCI excludes goods, classified work, and non-federal revenue) but signals scaling delivery across linguist, IT, and investigative labor. Government-paid hourly rates on SCI-reportable prime contracts range from a 10th percentile of $55.75/hr to a 90th percentile of $227.11/hr (median $96.16/hr), reflecting a mixed portfolio of administrative linguist labor (lower rate bands) and specialized IT and analytical work (upper bands). Across SCI-reportable prime contracts, subcontractors account for 4% of total contractor hours on average, with 10 named subcontractors reported, indicating Sos International primarily self-performs linguist and IT delivery rather than relying on broad subcontract networks.

In its subcontractor role, Sos International performs linguist support to the Institute for Defense Analyses (awarded August 11, 2025) on a federally funded research and development center requirement serving the Office of the Secretary of Defense and Joint Staff; cybersecurity risk guidance to CDO Technologies Inc. (awarded June 1, 2024, and February 1, 2023) for DODIN and AFIN asset risk reduction; IT services to General Dynamics Information Technology, Inc. on the Europe-Wide Information Technology and Enterprise Network Services IDIQ (awarded December 5, 2024); network services support to Directviz Solutions LLC (awarded September 30, 2025) for Army Regional Cyber Center Continental U.S. operations; and space threat analysis to Booz Allen Hamilton Inc. (awarded February 13, 2024) for space security and defense program research and characterization. These subcontract engagements position Sos International as a feeder to larger system integrators on specialized linguist and cybersecurity work rather than a primary bundler.

GSA Multiple Award Schedule presence spans 300 active labor categories priced from $26.32/hr (Graphic Presentations/Tech Writer 1, high school education, no clearance) through $313.44/hr (Subject Matter Expert 6, master's degree, 33 years experience), with no security-cleared roles offered on the GSA platform. Representative mid-market categories include IT Systems Specialist 4 at $115.78/hr and Cloud Software Engineer 1 at $136.59/hr, signaling IT modernization and cloud engineering capability available for direct agency ordering. This portfolio breadth enables MAS-based task orders for linguist services, IT support, engineering, and administrative labor across civilian agencies without requiring competitive solicitation.

Sos International operates as a large, unrestricted federal contractor competing in full-and-open competitions across defense and civilian sectors with no apparent pursuit of small-business set-asides despite holding set-aside vehicles (e.g., Total Small Business set-aside on DISA Mission Partner Environment orders). The vendor's corporate positioning as family-owned and its subsidiary structure (particularly STG LLC as a manufacturer) suggest organic growth and vertical integration rather than acquisition-driven scale-up, though recent high-dollar IDIQ awards (DiPSS at $138+ million, EOIR IDIQ at $875 million, WEXMAC TITUS at $65 billion ceiling) indicate successful positioning on strategic vehicles serving high-priority federal priorities in immigration enforcement, overseas operations support, and expeditionary logistics.

Contract vehicles

Sos International LLC holds a place on 14 federal contract vehicles. Active vehicles first.

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Quick answers

What is Sos International LLC's UEI?

Sos International LLC's Unique Entity ID (UEI) in SAM.gov is L3VCKMD7J585.

What is Sos International LLC's CAGE code?

Sos International LLC's CAGE code is 6QG06.

What is Sos International LLC's primary NAICS code?

Sos International LLC's primary NAICS code is 541990 (All Other Professional, Scientific, and Technical Services).

Where is Sos International LLC located?

Sos International LLC's physical address in SAM.gov is 1881 Campus Commons Dr #500, Reston, VA 20191, USA.

Is Sos International LLC registered in SAM.gov?

Yes. Sos International LLC's SAM.gov registration is active through April 17, 2027.

Who is Sos International LLC's parent company?

Sos International LLC is part of Sos International LTD.

Which contract vehicles does Sos International LLC hold?

Sos International LLC holds a place on 14 federal contract vehicles, including DLITE II, Emergency Detention and Related Services Strategic Sourcing Vehicle and ICE Nationwide Skip Tracing Services.

What is Sos International LLC's most recent federal award?

Sos International LLC's most recent federal contract award is This task order is for skip tracing services for enforcement and removal operations (70CDCR26FR0000068), from Immigration and Customs Enforcement, on August 27, 2026.

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