For more than three decades, Marshall Agency has been one of Houston’s most trusted private security and executive protection firms.
Founded by Juan D. Perez and now led by Martha A. Perez, we continue a proud legacy of law-enforcement discipline, military precision, and family-owned accountability.
To safeguard our clients, their property, and their reputations through unwavering professionalism, integrity, and precision.
We are driven by a single goal to deliver protection you can trust, every time.
What began as a small, family-led operation in Houston has evolved into a comprehensive, full-service security agency trusted by corporate clients, private citizens, and high-profile individuals across Texas.
The Perez family built Marshall Agency on core values that still guide us today:
Over 20 years later, we remain deeply rooted in the Houston community — providing security that blends local expertise with world-class professionalism.
Our personnel are handpicked from law enforcement and military communities. Every officer and investigator undergoes rigorous screening, training, and ongoing evaluations.
We utilize real-time GPS tracking, digital incident reporting, and cloud-based command systems to ensure transparency and measurable results.
Each client is paired with a dedicated manager and has direct access to agency leadership. No call centers. No excuses. Just accountability.
Marshall Agency operates under all state and federal licensing requirements for private security firms in Texas, with complete liability coverage for client assurance.
From corporate executives to private families, confidentiality agreements and NDAs are standard practice — not add-ons.
Houston is more than our headquarters — it’s our community.
We proudly serve:
We understand the local landscape, from the unique challenges of maritime and industrial facilities to the growing demand for executive and residential protection.
Every client, every detail, every mission — handled with precision, discretion, and honor.
When you hire Marshall Agency, you gain more than a security provider.
You gain a partner who values your safety as if it were our own.
Call 713-369-0968 or request a consultation online for a confidential assessment.
Available 24/7 across the Greater Houston Area.
