| Security Consulting | Private Investigations | Law Enforcement Consulting |


McCarthy Byrnes is a trusted security, investigations, and public safety advisory firm providing strategic risk solutions to organizations operating in complex and high risk environments. Led by former senior law enforcement executives, our firm combines real world operational experience with modern risk management practices to help clients anticipate threats, reduce liability, and protect critical assets.

We support corporate entities, legal professionals, government agencies, and institutions with discreet, defensible, and actionable security and investigative services. These services are delivered through an extensive national network of experienced law enforcement and public safety professionals.

Strategic Security & Risk Advisory

Enterprise risk, threat, and vulnerability assessments
Security operations and program evaluations
Physical, technical, and infrastructure security consulting
Executive and high‑profile individual risk mitigation

Investigations & Intelligence Services

Licensed private investigations and corporate intelligence
Fraud, financial crimes, and internal investigations
Due diligence, background investigations, and vetting
Expert witness services and litigation support

Law Enforcement & Public Safety Consulting

Police department and public safety agency assessments
Organizational restructuring and performance improvement
Crime prevention strategy development
Law enforcement agencies


Who We Serve

Corporate and enterprise organizations
Attorneys, insurers, and risk professionals
Property owners, developers, and managers
Government agencies and public safety organizations
Educational and institutional clients

McCarthy Byrnes

The Chicago office focuses on law enforcement consulting, compliance, investigations, and security operations.

McCarthy Byrnes

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McCarthy Byrnes

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