About CDX international
About Robert Sadler
With over 40 years of hands-on Operational Technology (OT) and Industrial Control Systems (ICS) experience, Robert Sadler founded CDX International LLC in 2024 to deliver practical, engineer-first cybersecurity solutions to critical infrastructure operators.
Robert’s career spans from U.S. Navy Trident submarine fire control systems and Schweitzer Engineering Labs firmware development to leading national-level programs at Idaho National Laboratory and implementing real-world Zero Trust architectures at Liberty Utilities.
Key Accomplishments:
- Led CISA Zero Trust Maturity Model implementation across regulated and unregulated OT environments for (renewables, transmission, water/wastewater).
- Senior Engineering Advisor to US Navy advanced cyber operations and co-author of the Navy’s Maritime Platform Cybersecurity 101 course.
- Principal ICS Cyber Engineer & Assessment Team Lead for major DoD international defensive cyber programs.
- Authored 380+ OT Threat Intelligence Reports for DOE/DHS.
- Proven revenue impact: Delivered $150M+ growth in one year at Micron Custom Manufacturing Services.
CDX International combines deep OT engineering expertise with modern cybersecurity frameworks (NERC CIP, IEC 62443, NIST SP 800-82, UFC-4-010-06, RMF) to help utilities, renewable operators, DoD facilities, and critical infrastructure owners reduce risk, pass audits, and build resilient operations — without disrupting production.
Remote-first. Nationwide reach. Hands-on capabilities including full OT penetration testing flyaway kits, digital twins, threat modeling, and cyber-informed engineering.
Background in Industry
At CDX International LLC, we pride ourselves on our ability to deliver tailored consulting services that address the unique needs and requirements of each client. Whether it’s conducting system assessments, designing robust and secure control systems, or providing training and support, our team is dedicated to helping organizations maximize their operational capabilities and minimize risks.
Clients choose CDX International LLC for deep knowledge and expertise in critical infrastructure sectors, as well as our commitment to delivering exceptional results. We have worked with numerous companies who have sought out our services based on our reputation for excellence and our ability to provide practical and innovative solutions.
When you partner with CDX International LLC, you can expect personalized attention, reliable guidance, and a collaborative approach to problem-solving. Our team is passionate about helping organizations achieve their goals and navigate the complexities of critical infrastructure systems.
If you are looking for a trusted and experienced consulting partner to optimize your critical infrastructure operations, choose CDX International LLC. Contact us today to learn more about our services and how we can assist you in achieving your business objectives.