Professional Security Solutions in MD, DC & PA
Backed by Experience, Built on TrustSecurity Solutions for Organizations and Individuals
At Defender One, we believe security is more than a service—it’s a responsibility. Founded by a seasoned law enforcement officer and proudly family-owned, we deliver professional security services to clients across Maryland, Washington D.C., and Pennsylvania. Our team of highly trained security professionals provides both on-site protection for facilities and personal security for individuals, with a focus on prevention, professionalism, and peace of mind.
Whether you’re safeguarding a commercial property or protecting a public figure, we tailor every solution to your specific needs, environment, and level of risk.
Our Core Security Services
On-Site Security Guard Services
Maintain a strong, visible security presence at your facility with up-to 24/7 contracted coverage. Ideal for commercial properties, residential communities, healthcare centers, schools, dispensaries, and more.
Executive & Personal Protection Services
Discreet, one-on-one security for individuals who require elevated protection—whether for travel, events, or ongoing personal safety. Includes secured transportation upon request.
Fingerprinting Services
Fast, professional fingerprinting for individuals and organizations—ideal for background checks, employment onboarding, licensing, and regulatory compliance. Group appointments available.
Security isn’t one-size-fits-all—it’s a partnership. Work with a team that listens, adapts, and delivers the protection you deserve.
Why Do Clients Trust Defender One?
At Defender One, we combine the professionalism of a seasoned law enforcement background with the personalized service of a family-run business. Our clients count on us for consistent, hands-on support and a team that takes security as seriously as they do. Here’s why organizations and individuals across the region continue to trust Defender One:
Founded and led by a law enforcement veteran
with over 30 years of supervisory experience
Family-owned and operated
providing hands-on service and direct involvement from leadership
Trained, uniformed professionals
with a focus on visibility, deterrence, and discretion
Custom protection plans
whether for long-term contracts or short-term assignments
Serving clients across the Region
including Maryland, Washington D.C., and Pennsylvania
Give Your Security the Attention it Deserves
Whether you’re exploring ongoing facility protection or need personal security for an upcoming event, we’re here to help. Contact us today for a no-obligation consultation and take the first step toward better peace of mind.