
ADDX Corporation
Alexandria, VATenacious by Nature
Service detail: Engineering Readiness and Lifecycle Support
Public engineering firm directory
Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.
17 results
Showing 1-17 of 17

Tenacious by Nature
Service detail: Engineering Readiness and Lifecycle Support
Innovative, High-Quality Engineering Services
Project: Navy Continuous Training Environment (NCTE) Support
Partnership built on proof. Not promises.
Project: METEOR Technology Transfer and Business Development
Services and Solutions Optimized for Mission Success
Project: U.S. Army Office of Energy Initiatives (OEI) Project Support

Canyon is an El Segundo, California defense engineering and acquisition consulting firm founded in 2006 that supports U.S. Space Force, Air Force, and Department of Defense program offices in GPS and positioning, navigation, and timing (PNT) programs. Canyon's engineers and acquisition specialists bring over 100 combined years of program management, systems engineering, and test and evaluation experience to space vehicle, ground, and user equipment programs. Canyon holds a patent on a Steerable Antenna System (US 12,562,472 B2) and has provided broad expertise in GPS-III satellite development and the Modernized GPS User Equipment (MGUE) program.
Project: GPS-III Navigation Satellite Program Support

Training is not practice. It is perfection.
Project: JTAGSS Program

Exceptional Employees for Exceptional Results
Service detail: Program Management

Advanced systems engineering and program management
Service detail: Systems Engineering
Turning Mission Problems into Operational Advantage
Service detail: Mission Engineering & Concept Alignment

Creative Solutions for Complex Problems
Service detail: Software Engineering & Development

People Powering Technology
Project: Systems Engineering and Digital Transformation for NSWC PHD (Contract D9109-S16)
Innovative and Sustainable MEP Engineering Solutions
Service detail: Mechanical Engineering
Mission-focused technical and professional services for defense and intelligence clients.
Service detail: Intelligence

From Creative Concepts to Production Solutions
Project: Medical Diagnostic Instrument
Specialized Engineering, Analysis, & Management Services Incorporated (SEAMS INC) delivers highly specialized engineering, operations research, and advisory consultation services to the Department of Defense (DoD) and DoW. For 24 years, including 14 years supporting NAVAIR, it has focused on mathematical modeling, simulation, custom software development, and decision-quality information across the full lifecycle of aircraft acquisition programs. The practice provides computational analysis, algorithm design, survivability and vulnerability analysis, systems engineering, and test and evaluation services, alongside executive leadership briefings and subject matter expertise.
Service detail: Modeling & Simulation
Achieving sustained excellence in providing quality system and software engineering services - one client at a time
Service detail: Tactical Data Link Interoperability

A transition-focused approach to assured navigation solutions
Project: SBIR Phase II - US Army