Mission-Critical Technology Solutions for National Security
Castellum is a technology company focused on helping solve the nation’s most pressing national security challenges through cybersecurity, software engineering, systems engineering, electronic warfare, program support, and data analytics.
Supporting mission critical systems, services, and cyber security through innovation
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People, Opportunity, Purpose
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Supporting mission critical systems, services, and cyber security through innovation ✪ People, Opportunity, Purpose ✪
ABOUT US
Built for Today’s Evolving Security Environment
The growth of digital communications and enterprise systems has created both opportunities and threats. Castellum helps clients navigate those challenges by delivering technology, engineering, cyber, and mission support solutions.
Core Focus Areas
Autonomous Systems
Data Analytics & AI/ML
Software Development & Modernization
Cybersecurity
Model Based Systems Engineering
Intelligence & Operations in the Information Environment
Electronic Warfare & Electromagnetic Spectrum Operations
C-UAS
C5ISR
Training & Exercise Support
Integrated Capabilities Across Critical Mission Areas
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Digital and Software Engineering
Transforming complex software challenges into secure and scalable solutions.
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Program Support
Ensuring your most critical initiatives stay on track and deliver measurable results when execution matters most.
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Model Based Systems Engineering (MBSE)
Transforming complexity into clarity, enabling teams to visualize, analyze, and optimize systems before they’re built.
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Electronic Warfare (EW)/ Electromagnetic Spectrum Operations (EMSO)
Empowering organizations to sense, secure, and dominate in contested, multi‑domain environments.
Specialized Companies. Unified Mission.
Corvus Consulting, LLC (Corvus)
Corvus, a wholly owned subsidiary of Castellum, Inc. is a specialized advisory and operational support firm dedicated to preserving U.S. and coalition security. Our team delivers defense-related consulting, operations, strategic planning, assessments, and innovative solutions for the Department of Defense and Intelligence Community.
Specialty Systems, Inc. (SSI)
Founded in 1978, SSI, a wholly owned subsidiary of Castellum, Inc. is a trusted provider of software engineering, systems engineering, cybersecurity, network engineering, and mission support services for defense, government, and commercial customers.
Global Technology and Management Resources, Inc. (GTMR)
GTMR, a wholly owned subsidiary of Castellum, Inc. is a customer-focused engineering services company specializing in design engineering, prototype manufacturing, testing of cutting-edge tactical systems, and comprehensive lifecycle support.
Advanced Technology Products
Castellum is expanding its ability to deliver scalable technology products and partner-driven solutions that support evolving cyber, training, and mission needs.
XRA
XRA is an extended reality assistant concept designed to support training, maintenance, and mission-focused technical tasks.
GuardTower
GuardTower delivers a proactive defense platform that detects and neutralizes threats at their origin using deception, detection, and deterrence technology…
Proven Performance on Mission-Critical Programs
$103.3M GTMR contract for NAVAIR PMA-290 Special Missions support
$49.8M SSI recompete for NAWCAD Lakehurst Software Support Activities and cyber engineering
$66.2M SSI contract for NAWCAD Lakehurst logistics, engineering, and cyber support
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