Professional Security Backed by Integrity, Experience & Results

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Who We Are

Commonwealth Protective Services is a minority-owned security and investigations firm proudly serving clients across Pennsylvania. From day one, our mission has been simple: deliver protection that is professional, discreet, responsive, and grounded in real-world experience.

We know that choosing a security provider means putting your people, property, or privacy in someone else’s hands, and we don’t take that lightly. Our clients count on us for clear communication, rigorous professionalism, and service that goes beyond expectations. Whether we’re safeguarding a corporate campus, conducting a complex investigation, or coordinating event security, we bring the same level of commitment to every detail.

Why Commonwealth?

Our clients don’t just get security. They get a lot more: 

  • A Clear Plan — Every engagement starts with a collaborative, transparent strategy that aligns with your goals and risk profile.
  • Proactive Risk Reduction — We don’t wait for problems to happen. We anticipate, adapt, and prevent.
  • Results You Can See — From digital reports to post-operation briefings, we provide measurable results that build trust and accountability.
  • Responsive Support — Our leadership and command center are always just a phone call away.
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Trusted Security Experts in PA

Experienced Leadership You Can Count On

We are led by a diverse team of experts with backgrounds in law enforcement, federal investigations, private security, digital forensics, and tactical instruction. Our collective experience spans decades and it’s the foundation for every service we provide.

Matthew Diaz

CEO & President of Security Operations

Matt Diaz is a seasoned professional with extensive expertise in law enforcement, tactical training, and public safety. A certified instructor in multiple disciplines, Matt holds Forensic Interviewing, De-escalation, Defensive Tactics, and Firearms Training certifications. His leadership ensures every CWPS officer has the skills and knowledge to excel in the field. With a bachelor’s degree in political science and criminology and years of hands-on experience, Matt’s strategic vision drives CWPS’s mission to set new standards for security services.

Tony Lepre

Vice President of Consulting

Tony leads CWPS’s consulting division, bringing unparalleled insight into risk assessment and facilities security planning. With a strong background in business security solutions, Tony has developed strategies that empower clients to mitigate threats proactively. Tony’s focus on customized security consulting ensures that every client receives solutions tailored to their unique needs.

Dave Krupnick

Vice President of Investigations

David oversees CWPS’s private investigations division, ensuring meticulous attention to detail and professionalism in every case. With years of investigative experience in both the private and public sectors, David’s years as a Federal Agent have given him the skills needed to uncover critical information while maintaining discretion and integrity.

Kevin Fialkowski

Kevin Fialkowski

Lead Digital Forensic Investigator

Kevin specializes in fraud investigations, data analysis, and due diligence cases. His work blends traditional investigative techniques with high-tech tools for uncovering complex patterns and solving difficult cases.

Brian Zwally

Brian Zwally

Chief Security

An Executive Protection Specialist and Act 235-certified professional, Brian leads our firearms training programs and provides on-the-ground leadership for high-risk security assignments. His balance of tactical precision and client-first service sets the standard for our protective operations.

Built on Values. Trusted for Results.

At Commonwealth, we believe that professionalism, preparation, and trust are the true cornerstones of effective protection. As a licensed, insured, and minority-owned firm, we’re proud to bring world-class service to organizations and individuals who expect more from their security provider.

When you partner with us, you’re getting:

  • Experienced professionals, not trainees.
  • Custom solutions, not generic plans.
  • Real accountability, not empty promises.

Let’s Secure What Matters Most

From investigations and armed security to executive protection and surveillance, we’re here to support your mission, quietly, confidently, and effectively.