
ADDX Corporation
Alexandria, VATenacious by Nature
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Tenacious by Nature
Innovative, High-Quality Engineering Services
Partnership built on proof. Not promises.
Services and Solutions Optimized for Mission Success

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.

Training is not practice. It is perfection.

Exceptional Employees for Exceptional Results

Advanced systems engineering and program management
Turning Mission Problems into Operational Advantage

Creative Solutions for Complex Problems

People Powering Technology
Innovative and Sustainable MEP Engineering Solutions
Mission-focused technical and professional services for defense and intelligence clients.

From Creative Concepts to Production Solutions
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.
Achieving sustained excellence in providing quality system and software engineering services - one client at a time

A transition-focused approach to assured navigation solutions