Welcome to Global Security and Investigative Services, a distinguished group of professional Texas-licensed private investigators and security personnel.

Protect What Matters with GLOBAL SECURITY AND INVESTIGATIVE SERVICES INC - HOUSTON

Looking for trusted Security Guard Service services in Houston? GLOBAL SECURITY AND INVESTIGATIVE SERVICES INC - HOUSTON is your local expert for alarms, surveillance, access control, and more. Whether you're securing your home or business, get help from pros who know how to keep you safe. Fast. Simple. No pressure.

Fast. Easy. Hassle-Free.

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Expert Security Tips & Insights

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The Future of Home Security: What to Expect in the Next Decade

June 25th, 2025

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Protect What Matters with GLOBAL SECURITY AND INVESTIGATIVE SERVICES INC - HOUSTON

Expert Security Tips & Insights

The Future of Home Security: What to Expect in the Next Decade

The Unseen Costs of a Security Breach

Security Trends: What’s In, What’s Out

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