Matthew Rash
Visionary leader with a passion for building strong teams and delivering exceptional client experiences.

At One Shield Security Services, our clients come first. We are dedicated to providing intelligent, proactive security solutions that protect people, property, and peace of mind. Built on integrity and inspired by the Go-Giver philosophy, our core is simple: provide more in value, put our clients' interests first, and be authentic in everything we do.
Inspired by the Go-Giver.
We go beyond expectations by delivering solutions that create real, measurable value for our clients.
We listen, understand, and act in the best interest of our clients—always.
We lead with honesty, transparency, and integrity in everything we do.
A simple, proven formula that drives exceptional results for our clients.
We recruit and develop highly trained professionals who embody our values and are committed to excellence in service.
We leverage proven systems, advanced technology, and continuous improvement to ensure efficiency and accountability.
We deliver proactive, responsive, and intelligence-driven security solutions that exceed expectations every time.
One Shield Security Services was founded in 2018 in Carlsbad, California with a clear vision: to raise the standard of security services through integrity, professionalism, and innovation.
From day one, we focused on raising the standard—investing in our people, embracing cutting-edge technology, and refining our operations to deliver custom security solutions that are proactive, responsive, and built around our clients' unique needs.
Today, we're proud to protect businesses, communities, and events across California. Our commitment remains the same as the day we started: do the right thing, add value, and build lasting relationships that make a difference.

Visionary leader with a passion for building strong teams and delivering exceptional client experiences.
Driving financial strategy, operational efficiency, and sustainable growth.
Overseeing daily operations with a focus on performance, compliance, and client satisfaction.
Building lasting partnerships and delivering tailored security solutions that create real value.
We take the time to understand your needs and design a customized security solution that delivers confidence and peace of mind.