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System Studies and Simulation (S3), Inc. Tech Stack

DoD and aerospace technical services across training, planning, and logistics

Defense and Space Manufacturing Huntsville, AL 501–1,000 employees Founded 1991 Privately Held

S3 is a defense contractor executing contracts across six service lines—strategic planning, systems engineering, training, security operations, logistics, and commercial aviation support. The tech stack is almost entirely Microsoft and Deltek, with no cloud or modern infrastructure tools visible, reflecting a government contracting organization optimized for compliance and cost accounting rather than product velocity. Active hiring across finance, ops, and HR with no engineering roles signals internal growth management (staffing plans, benefit structures, AP automation) over capability expansion.

Tech Stack 12 technologies

Core StackQuickBooks Deltek Costpoint SharePoint PowerPoint Affinity Photo Publisher InDesign Excel Outlook Microsoft Access Word

What System Studies and Simulation (S3), Inc. Is Building

◆Challenges

Contract growth
Automating ap processes
Coordinating multiple databases
Monitoring obligations progress
Expanding corporate operations
Significant growth activities
Cost-effective benefit plans
High volume ap processing

▲Active Projects

Oconus contract support
Storm technical contract
Pgmr product manager coordination
Proposal graphics
Marketing materials
Website content updates
Major proposal development
Contract negotiation and risk mitigation
Change management for growth
Staffing plan development

Hiring Activity

Accelerating8 roles · 5 in 30d

Department

Finance

3

Ops

3

HR

1

Marketing

1

Seniority

Mid

3

Senior

3

Manager

2

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About System Studies and Simulation (S3), Inc.

System Studies and Simulation (S3), founded in 1991 and woman-owned, provides technical services to the U.S. Department of Defense, NASA, foreign military partners, and commercial aviation customers. The company operates across six service categories: strategic planning and analysis, systems engineering and technical assistance, training and education, security operations, logistics support, and commercial aviation. S3 maintains contract presence at multiple DoD installations domestically and internationally, including sites in Europe, Iraq, Saudi Arabia, and Afghanistan. Work spans the full spectrum of military operations—from strategic-level planning at the Pentagon and National Guard Bureau to tactical training for aviation platforms including the AH-64E, CH-47F, UH-60M helicopters and Javelin systems. The organization also delivers C4ISR and special operations training to Air Force and Special Operations Command.

HeadquartersHuntsville, AL

Company Size501–1,000 employees

Founded1991

Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does System Studies and Simulation use?

S3's primary tools are Deltek Costpoint for project accounting, Microsoft Office suite (SharePoint, Excel, Word, PowerPoint, Access, Outlook), and design software (Affinity Photo, InDesign, Publisher). No adoption or replacement activity is underway.