About Guardian — Service. Precision. Integrity.
A veteran-owned, woman-led auto glass company built from the ground up in Arizona.
Guardian Glass & Calibration AZ LLC was founded by Susannah Riley, a service-disabled U.S. Coast Guard veteran with eight years of active duty service and over a decade of federal civil service. After years of watching the auto glass industry prioritize corporate margins over customer service and shop integrity, Susannah set out to build something different.
Guardian was built on three principles that carry directly from military service into every job we take:
service
We show up. We follow through. We do not cut corners. Every vehicle we touch is treated like it belongs to someone we care about — because it does.
precision
Auto glass and ADAS calibration are life-safety work. We hold ourselves to the same exacting standards that govern military operations. Precision is not optional.
integrity
We are transparent with our customers, fair with our partners, and honest about what we can and cannot do. Our word is our bond.
our story
Susannah Riley — Founder & Managing Member
Susannah served eight years on active duty in the United States Coast Guard before transitioning to a 15-year career as a federal civil servant with the Department of Homeland Security, where she reached the GS-13 level. She holds a Master's degree in Public Administration.
After transitioning to the private sector, Susannah brought her background in governance, operations management, and accountability to the auto glass industry. She launched Guardian Glass & Calibration AZ LLC to create a shop that customers — and other veterans — can actually trust.
As a service-disabled veteran and woman-owned business owner, Susannah is also committed to pursuing government and fleet contracts that give agencies and organizations access to a certified, mission-ready vendor who delivers on every promise.
OUR CERTIFICATIONS & COMMITMENT
SDVOSB
Service-Disabled Veteran-Owned Small Business
WOSB
Women-Owned Small Business — SBA Certified
AZ
Arizona Veteran & Woman-Owned Business Preference
These certifications are more than designations. They represent our commitment to accountability, our eligibility for government and fleet contracts, and our obligation to deliver at the standard those programs demand.
Request a Service Consultation
Submit the inquiry form to discuss specific performance objectives, and a technical advisor will respond promptly to implement an optimized service schedule.