Security Solutions At Work
Safeguarding Your InterestsMcCarthy Byrnes utilizes a vast network of police professionals to achieve the goals of our clients worldwide.
McCarthy Byrnes
Ensure your most important assets are protected.
McCarthy Byrnes works to reduce client liability while ensuring the safety of their customers, personnel and business interests.
Our expert capabilities include organizational restructuring that create efficiencies of operations and budgets, implementing crime prevention strategies, and mitigating threats for high-value targets.
We utilize a vast network of police professionals that allows us to staff any project across the United States and to achieve the goals set forth by any client worldwide.
Industries We Serve
Our Services
Create a line of defense on every front.
As we navigate through the rapidly evolving and highly unpredictable landscape of security threats, it is more important than ever for businesses to take proactive steps to protect their customers, personnel, and assets. The current climate is characterized by a complex array of risks, including domestic urban unrest and international terrorism. In order to stay ahead of the curve and remain resilient in the face of these security threats, businesses must continuously update their safety practices and procedures.
At McCarthy Byrnes, we understand the importance of providing our clients with the highest level of protection. That’s why we work tirelessly to ensure that our clients have a strong line of defense on every front. With our extensive network of law enforcement professionals, experience and cutting-edge expertise, we are committed to helping businesses maintain a secure and stable environment for their employees, customers, and operations.
Security Assessments
Workplace Violence Threat Assessment & Prevention Training
Security
- Minimizing Vulnerabilities: Residential, Physical & Technical Security
- Construction Site Security
Technology & Infrastructure Consulting
About McCarthy Byrnes

Garry F. McCarthy
President & CEO

Robert Byrnes
Partner & COO

Kevin Ruel
Director of Risk Management

Terence V. Williams
Director of Risk Consulting

Anthony Scarpelli
Director of Law Enforcement Consulting

Robert Toerpe
Director of Investigations

Sabih Khan
Director of Technology

Roberto "Junior" Guerra
Director of Field Operations
In The Media
Former Chicago Police Supt. McCarthy was Assistant Supt. in New York During 9/11 Attacks
Garry McCarthy Talks Rise in Crime
Legal cynicism, the biggest threat to policing
https://www.youtube.com/watch?v=2Grqe9mWydc