System Studies & Simulation, Inc.

Huntsville, AL Doing business as S3

UEI
Z5G7R7QDAYD9
CAGE
0WYZ8
Primary NAICS
541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
SAM.gov registration
Active through

Company facts

SBA certifications
Women-Owned Small Business
· Current
Self-certified in SAM.gov
  • For Profit Organization
  • Woman Owned Small Business
  • Woman Owned Business
  • Subchapter S Corporation
Entity structure
Corporate Entity (Not Tax Exempt)
NAICS codes registered in SAM.gov
Show all
Corporate family
SAM.gov registration date
Physical address
615 Discovery Dr NW, Huntsville, AL 35806, USA
Website
s3inc.com
Founded
1991
Employees
251-1K
Estimated annual revenue
$50M-$100M
Industry
  1. Industrials
  2. Capital Goods
  3. Construction & Engineering
  4. Civil Engineering
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

System Studies & Simulation, Inc.'s 5 most recent federal contract and grant awards, newest first. Amounts are dollars obligated.
Award Agency Obligated Awarded
Scalable homeland innovative enterprise layered defense (shield) initial order. Contract · HQ085926FF024 Missile Defense Agency $500
Aetc aircrew maintenance and training services Contract · 47QFWA24F0015 Assisted Acquisition Services Region 7 $10,722,522
S3 mentor protege program Contract · FA701424C0028 District Washington $809,818
Programmatic support services Contract · W31P4Q23FD003 Aviation and Missile Command $44,659,056
Strategic and operational rockets and missiles project office technical support services. Contract · W31P4Q23FB003 Aviation and Missile Command $61,948,462

About System Studies & Simulation, Inc.

Written by GovTribe AI ·

System Studies & Simulation, Inc., doing business as S3, headquartered in Huntsville, Alabama, is an SBA-certified women-owned small business providing systems engineering, modeling and simulation, program management, technical analysis, and advisory services to the Department of Defense and other federal agencies as a prime contractor on 438 awards (90% of recent activity) and as a subcontractor on 50 awards.

S3's federal footprint reflects deep entrenchment in Army modernization and training programs. The top customers by award count are the Department of the Army National Guard Readiness Center (94 awards, $416.2 million combined potential value), the Department of the Army (65 awards, $36.6 million), and the Department of the Army Materiel Command Aviation and Missile Life Cycle Management Command (47 awards, $228.3 million), together accounting for 56% of the 488 awards in the portfolio. However, the top-five ranking by potential value diverges significantly: the Department of the Navy Naval Sea Systems Command anchors $76.51 billion across just 7 awards, and the Department of the Army Acquisition Support Center PEO Simulation, Training and Instrumentation carries $17.53 billion across 6 awards—together representing the lion's share of the portfolio's $134.57 billion combined potential value. This extreme concentration in two Navy and Army modernization vehicles creates both runway and recompete risk; only 3 awards worth $30 million combined complete in the next twenty-four months.

S3 operates across multiple named government-wide vehicles and agency-specific platforms. The Mission Oriented Business Integrated Services vehicle (MOBIS) carries 67 task orders worth $204.6 million, the GSA Multiple Award Schedule hosts 49 task orders worth $176.2 million, and the Federal Supply Schedule GS23F0254K carries 44 task orders worth $25.3 million. The vendor also holds positions on the Indefinite Delivery Contract W9133L05D0002 (33 task orders, $40.4 million) and The Professional Services Schedule (29 task orders, $71.5 million). Most significantly, S3 was awarded a multiple-award IDIQ under the Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) program by the Missile Defense Agency on December 29, 2025, with a ceiling of $151 billion spanning ten years through December 2028. The SHIELD vehicle covers research and development, prototyping, systems engineering, weapon design, production, test and evaluation, cybersecurity, and modernization across air, missile, space, cyber, and hybrid threats. S3 also holds a position on the OASIS+ Total Small Business set-aside IDIQ (awarded December 19, 2024, base through December 18, 2029) and the ASTRO government-wide vehicle (both multiple-award IDIQs with placeholder ceiling values).

Recent prime work exemplifies S3's capability mix. A $48.1 million delivery order from the Air Education and Training Command (issued September 29, 2024, under GSA Multiple Award Schedule, running through September 28, 2029) provides aircrew maintenance and training services on a time-and-materials basis at Randolph Air Force Base, Texas. A $100.96 million delivery order from PEO Missiles and Space (issued March 16, 2023, under GSA Multiple Award Schedule, running through September 15, 2028) delivers technical support services to the Strategic and Operational Rockets and Missiles Project Office in Huntsville, Alabama, on a firm-fixed-price basis; SCI-reportable invoicing reached $12.9 million in FY2024 across 49.6 FTEs with 48% of hours subcontracted to 11 subcontractors. A $515,393 delivery order from PEO Missiles and Space (issued June 16, 2023, under GSA Multiple Award Schedule, running through December 15, 2028) supports programmatic services for strategic operational rockets and missiles; FY2024 invoicing hit $11.8 million across 15.4 FTEs on a $367.04/hr blended rate. Additionally, S3 serves as mentor under a $1.7 million cost-no-fee DoD Mentor Protégé contract awarded June 30, 2024, by the Office of the Secretary of Defense, supporting MacaLogic's capability development through September 29, 2027.

S3's subcontractor profile reveals deepening ties to larger defense primes, particularly Torch Technologies Inc., which accounts for the bulk of recent sub-awards dating from January 2024 onward. Under Torch, S3 delivers systems engineering, theoretical analyses, simulation and modeling, hardware design, software and algorithm development, and hardware fabrication in support of advanced missile guidance systems, multi-mode seekers, autonomous acquisition algorithms, and integrated sensor suites for the Army's Combat Capabilities Development Command Aviation and Missile Center and Weapons Development and Integration Directorate. S3 also subcontracts to Science Applications International Corporation on system software lifecycle engineering and capability development test and evaluation, and to Lockheed Martin on UH-72A helicopter maintenance and flight support.

Across SCI-reportable prime service contracts, S3 invoiced $48.4 million over FY2022–FY2024, with FY2024 alone reaching $24.7 million across 65.0 FTEs. The government-paid hourly rate spectrum on prime contracts spans a median of $110.28/hr with senior labor pricing reaching $270.20/hr at the 90th percentile, reflecting a mix of technical engineering and program management labor. On prime contracts captured in SCI, subcontractors account for an average of 31% of total contractor hours across 43 named subcontractors—a teaming profile indicating S3 builds substantial delivery teams while retaining core engineering and program management capacity in-house. The vendor's recent trajectory accelerated from 10 awards in 2021 to 34 in 2024, though this velocity reflects task-order issuance under large IDVs rather than new vehicle positions; the 15 awards in 2025 year-to-date continue that pattern.

S3's corporate structure includes three subsidiaries: S3 International, Inc., Global Logistics Support Services Inc., and Kachemak Bay Flying Service Inc., all subchapter S corporations. These entities may support specialized regional or functional capabilities within the S3 enterprise, though the source does not characterize their specific roles or service lines.

Contract vehicles

System Studies & Simulation, Inc. holds a place on 15 federal contract vehicles. Active vehicles first.

Show all

SBA capabilities narrative

From the vendor's SBA profile

Core Compentencies: Acquisition Support; Conference Coordination; Cost Analysis; Information Technology; Logistics; Modeling & Simulation; Programmatics; Strategic Planning; System Engineering; Technical Services; Test; Training.

Quick answers

What is System Studies & Simulation, Inc.'s UEI?

System Studies & Simulation, Inc.'s Unique Entity ID (UEI) in SAM.gov is Z5G7R7QDAYD9.

What is System Studies & Simulation, Inc.'s CAGE code?

System Studies & Simulation, Inc.'s CAGE code is 0WYZ8.

What is System Studies & Simulation, Inc.'s primary NAICS code?

System Studies & Simulation, Inc.'s primary NAICS code is 541715 (Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)).

Where is System Studies & Simulation, Inc. located?

System Studies & Simulation, Inc.'s physical address in SAM.gov is 615 Discovery Dr NW, Huntsville, AL 35806, USA.

Is System Studies & Simulation, Inc. registered in SAM.gov?

Yes. System Studies & Simulation, Inc.'s SAM.gov registration is active through November 24, 2026.

Which SBA certifications does System Studies & Simulation, Inc. hold?

System Studies & Simulation, Inc. holds Women-Owned Small Business certification from the SBA.

Which contract vehicles does System Studies & Simulation, Inc. hold?

System Studies & Simulation, Inc. holds a place on 15 federal contract vehicles, including ASTRO, MOBIS and MAS.

What is System Studies & Simulation, Inc.'s most recent federal award?

System Studies & Simulation, Inc.'s most recent federal contract award is Scalable homeland innovative enterprise layered defense (shield) initial order (HQ085926FF024), from Missile Defense Agency, on December 29, 2025.

On GovTribe

See System Studies & Simulation, Inc.'s full federal record

  • Federal contract awards
  • IDV awards
  • Contract vehicles
  • Subcontracting relationships
  • Funding analysis by agency, NAICS and set-aside
  • Similar vendors
Try for free Login