Sos International LLC

Reston, VA

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)
Other NAICS codes in SAM.gov
Show all 124
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

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 $164,637,187
FY2025 $141,640,080
FY2024 $112,504,827
FY2023 $152,537,527

Top agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of Justice $92,763,230
2 Department of State $27,286,658
3 Department of Homeland Security $18,636,511
4 Defense Information Systems Agency $13,245,880
5 Air Force $4,725,754
6 Department of the Treasury $3,174,067
7 Department of the Army $2,726,517
8 Office of the Secretary of Defense $1,408,071
9 Defense Media Activity $670,000
10 Missile Defense Agency $500

Contract vehicles

Expired vehicles (4)

Contract awards

Award Agency Obligated Awarded
This task order is for skip tracing services for enforcement and removal operations 70CDCR26FR0000068 Immigration and Customs Enforcement $4,926,679
DHS/DOJ process optimization 70RDA226FR0000033 Office of Procurement Operations $1,191,383
The primary objective of the EDA program is to bridge the operational gaps between DOD, IC, interagency, and… W91QEX26FA059 RCO Miami 410th CSB $546,943
Title: sosi linguist services - option year 3 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… 70CDCR26FR0000097 Immigration and Customs Enforcement $3,921,464

Latest 5 listed here. See the rest on GovTribe.

Contract subawards

Prime contractor Prime award Amount Awarded
Peraton Enterprise Solutions LLC THE PURPOSE OF THIS TASK ORDER AWARD IS TO OBLIGATE $25,500,000.00 TO THE CONSULAR AFFAIRS ENTERPRISE INFRASTRUCTURE OPERATIONS REQUIREMENT. support based on… 47QFCA20F0015 $5,834,190
Directviz Solutions, LLC CONTRACT AWARD FOR A NONPERSONAL, SEVERABLE, INCREMENTALLY FUNDED, COST PLUS FIXED FEE CONTRACT FOR LABOR, OVERTIME, TRAVEL AND TRAINING TO PROVIDE… W91RUS19C0014 $69,115,593
Institute For Defense Analyses FEDERALLY FUNDED RESEARCH AND DEVELOPMENT CENTER SUPPORT FOR RESEARCH AND ANALYSIS SUPPORT TO THE OFFICE OF THE SECRETARY OF DEFENSE, JOINT STAFF, DEFENSE… HQ003424F0422 $328,407
Peraton Inc. NON-PERSONAL INFORMATION TECHNOLOGY SERVICES FOR THE REGIONAL CYBER CENTER-EUROPE. CyberSecurity Services W91RUS23F0373 $8,901,202
CDO Technologies Inc. THIS CONTRACT SUPPORT IS REQUIRED TO PROVIDE GUIDANCE TO REDUCE THE CYBERSECURITY/IA RISKS INFORMATION TECHNOLOGY (IT) ASSETS POSE TO THE DODIN, THE AFIN,… FA489022F0040 $1,021,670

Latest 5 listed here. See the rest on GovTribe.

Similar vendors

Vendor Location Primary NAICS
Mvm, Inc. UEI ZHJYA5NN32Z5 Ashburn, VA 561612 Security Guards and Patrol Services
Jtg, Inc. UEI LVSJV3MZHTQ8 Reston, VA 541930 Translation and Interpretation Services
Valbin Corporation UEI LM9RWGBM1MF3 Bethesda, MD 541930 Translation and Interpretation Services
Lionbridge Global Solutions II Inc. UEI NBLJXNCZYR17 Waltham, MA 541930 Translation and Interpretation Services
Bluehawk LLC UEI LJ93K5X4BJN7 West Palm Beach, FL 541990 All Other Professional, Scientific, and Technical Services

See more similar vendors on GovTribe

About the company

Written by GovTribe AI ·

Sos International LLC, a private, family-owned government services integrator headquartered in Reston, Virginia, operates as a prime contractor delivering language interpretation and translation services, investigative skip-tracing and process-serving, facilities maintenance and security guard services, IT infrastructure support, and specialized operational support across civilian enforcement and defense agencies. The vendor competes predominantly full-and-open without set-asides, holding a $241.5 billion combined potential value across 756 awards with 98% as prime work, though recent ordering activity remains concentrated (only 1% of potential value obligated to date).

Sos International's customer base centers on language-intensive federal enforcement and immigration agencies. The Drug Enforcement Administration leads by award count with 531 awards ($299.4 million potential value) spanning the five-year, $188.66 million single-award Blanket Purchase Agreement for national linguist services awarded April 1, 2026, through March 31, 2031. The Executive Office for Immigration Review ranks second in potential dollars ($2.24 billion across 16 awards), anchored by an $875 million single-award IDIQ for language interpretation services (in-person, telephonic, and video remote modalities) awarded February 1, 2026, through July 31, 2033, and a $100 million delivery order from February 1, 2026, for interpretation services through January 31, 2027. Immigration and Customs Enforcement, a third major customer across both award count and dollars, issued a $559.6 million indefinite-delivery contract on June 1, 2026, for safety verification and wellness checks on unaccompanied alien children, with a $277.8 million delivery order on June 18, 2026. The vendor also holds material work with the Army European Command ($147.7 million across 45 awards), Defense Information Systems Agency ($711.5 million across 18 awards), and multiple civilian and defense IT customers. The top five customers by potential value account for 52% of combined potential value, with GSA Federal Acquisition Service anchoring $90.78 billion through the OASIS+ Unrestricted GWAC awarded December 17, 2024, a no-set-aside vehicle with a multi-billion-dollar ceiling.

Service Contract Inventory data shows invoiced SCI-reportable revenue of $429 million across FY2022–FY2025 (prime records only), with significant recent growth: $95.9 million in FY2022 scaling to $152.3 million in FY2025 across an expanding workforce. SCI-reported FTE trajectory grew from 272 in FY2022 to 991 in FY2025, reflecting both labor-intensive language services scaling and core business growth. Government-paid hourly rates on SCI-reportable prime contracts span a median of $94.27 per hour, with a 10th percentile floor of $48.23 per hour and 90th percentile ceiling of $225.12 per hour, indicating mixed staffing of administrative and specialized labor. The GSA Multiple Award Schedule labor portfolio carries 300 active categories priced from $26.32 to $313.44 per hour, spanning administrative support, IT systems specialists, cloud software engineers, and subject matter experts at master's degree levels with no security-clearance offerings.

Sos International operates as a near-pure prime contractor (98% of awards), with minimal subcontractor engagement. Across SCI-reportable prime contracts, subcontractors perform only 3% of total contractor hours, with 13 named subcontractors documented in the source data. Named sub-primes include Peraton Enterprise Solutions LLC (Consular Affairs IT operations), Institute For Defense Analyses (linguist support to the Office of the Secretary of Defense), Peraton Inc. (cyber services), General Dynamics Information Technology (Europe-wide IT services), CDO Technologies (cybersecurity guidance), Booz Allen Hamilton (space security threat analysis), and HII Mission Technologies (naval technical collection). The vendor subcontracts infrequently across prime work, instead building internal delivery capacity — the FY2025 SCI roster shows 14 prime records capturing the bulk of language and IT service delivery.

Major parent vehicle positions include the OASIS+ Unrestricted GWAC (GSA, no ceiling specified, awarded December 2024), the DEA National Linguist Services single-award BPA ($188.66 million through March 31, 2031), the Executive Office for Immigration Review IDIQ for language interpretation ($875 million through July 2033), the ICE Safety Verification and Wellness Checks IDIQ ($559.6 million through May 31, 2027), the ICE Nationwide Skip Tracing Services IDIQ ($123.2 million through December 15, 2027), the WEXMAC TITUS logistics contract with Naval Supply Systems Command ($65 billion ceiling through December 31, 2029), the Missile Defense Agency SHIELD contract ($151 billion ceiling through December 28, 2035, with only $500 in initial orders), the USAFE-AFAFRICA Advisory and Assistance Services IDIQ ($995 million through 2028), the ITES-3S Army IT contract (multiple task orders for network engineering and system administration), and the GSA Multiple Award Schedule (29 task orders, $119.4 million combined potential value). Activity trajectory shows modest recent year-over-year fluctuation—22 awards in 2022, 23 in 2023, 16 in 2024, 18 in 2025, and 11 through October 2026—reflecting the maturation of large single-award vehicles and IDIQ consolidation rather than growth in distinct contract vehicles. Within the next twenty-four months, eleven awards carrying combined potential value of $590.7 million reach ultimate completion and therefore face recompete, representing meaningful pipeline risk concentrated in language services and investigative work.

The corporate structure consists of a parent, 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. Subsidiary capability framing from source descriptions indicates language services dominance, though naming conventions suggest Defense Group and Exovera may anchor IT and specialized service lines. The vendor registered in SAM in 2012 and maintains a track record as a family-owned services integrator spanning language operations, facilities, IT infrastructure, and enforcement support. Recent awards demonstrate continued access to high-value vehicles: the November 1, 2026, NASA SEWP VI GWAC award ($20 billion ceiling through October 2036) provides IT product and service solutions access across all federal agencies, while the December 29, 2025, Missile Defense Agency SHIELD award ($151 billion vehicle, though initial order minimal) positions Sos International for multi-domain defense and homeland protection sourcing. Translation and interpretation services dominate the award count (565 awards under NAICS 541930), with IT and cybersecurity work (104 awards across systems design, other IT services, and related categories) comprising a secondary but growing capability tier.

Quick answers

Is Sos International LLC registered in SAM.gov?

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

Which contract vehicles does Sos International LLC hold?

Sos International LLC holds a place on 15 federal contract vehicles, including DLITE II, Emergency Detention and Related Services Strategic Sourcing Vehicle and ICE Nationwide Skip Tracing Services.

How much has Sos International LLC received in federal contracts?

Federal contracts obligated $141,640,080 to Sos International LLC in fiscal year 2025 and $571,319,621 in fiscal years 2023 through 2027.

How does Sos International LLC rank among federal contractors?

Sos International LLC ranked #1 in NAICS 54193, #1 in PSC R608 and #6 at the Defense Media Activity in FY2025.

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.

On GovTribe

See Sos International LLC's full federal record

  • Federal contract awards
  • IDV awards
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  • Funding analysis by agency, NAICS and set-aside
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