Off-Duty Law Enforcement Patrol & Security Services Nationwide

Reliable Off-Duty Police: Patrols and Security Coverage You Can Trust

Protos Security provides patrol and security services staffed by trained, uniformed off-duty law enforcement officers.

Our nationwide network of active-duty police and deputies delivers visible deterrence and professional protection for businesses, residential communities, and commercial properties. We handle coordination, insurance, and compliance — so you get reliable police-backed patrol coverage without administrative complexity.

After you submit the form, a security expert will contact you within 24 hours—typically within minutes—by phone and/or email.

Submit the form and a dedicated security expert will reach out within 24 hours—typically within minutes.

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It's not your Imagination

Threats today are more frequent, brazen and costly than ever before and “Big Security” simply hasn’t found a way to keep up:

The State of Security

There’s a lot to lose with the status quo practices of “Big Security.”

0 %

of companies without adequate 3rd party help report a drop in earnings after a major security incident.

0 %

of companies without adequate 3rd party help are 10% more likely to be impacted.

0 %

of companies without adequate 3rd party help expect internal security incidents this year – up 5% from prior year

There's a better way

Security that Never Settles

Protos takes a different approach by promising a modern security experience that never settles and dynamically adapts to when, where and how it’s needed.

By vetting, training and orchestrating thousands of local owner/operator security vendors, plus the largest off-duty law enforcement network, Protos delivers scalable protection in any situation.

Using our dynamic security management platform, we put improved 
staffing, vetting, training, visibility, accountability and flexibility at your 
fingertips, including custom reporting and actual-time billing.

We are committed to your hassle-free and always-accountable 
customer experience across all four of our security service lines: 
guarding, off-duty, specialized and remote.

Our Protos Promises

These promises exemplify our dedication to making sure you never have to wonder whether you’re getting the best protection possible.

Security Without Compromise

Our proprietary platform puts improved staffing, vetting, training, visibility, accountability and flexibility at your fingertips.

We Only Bill For What We Deliver

No billing based on abstract terms and unfulfilled hours. We only bill for actual time and services provided.

When Surprises Happen, 
We’ll Be Ready

Our security resource flexibility and responsiveness enable us to pivot quickly to better handle any situation.

We’re Accountable
To You Everyday

With 1:1 customer service and real-time reporting, we make sure you know everything there is to know.

We’re Constantly Improving

Our continuous improvement program helps us quickly address any issues and learn your unique needs.

We Won’t Rest Until It’s Right

Our goal is to deliver unmatched flexibility and innovative protection, creating a better security experience for you every day.

What does a MODERN SECURITY EXPERIENCE provide?

2800+

Active vendor branch locations across the US

#1

Largest national off-duty law enforcement provider in the US

100%

Timekeeping Participation

150k

Incidents reported annually by officers using Protos’ technology

MY Protos Promise

As a leader, my commitment is to listen, learn, and continuously evolve so we can elevate the exceptional experience we deliver every day.

I will challenge and empower my team to live out their Protos Promises in everything they do fostering a culture of innovation, accountability, and breakthrough solutions. Growth comes from feedback, and I will always welcome it as a catalyst to raise the bar and drive us forward.

At Protos, we don’t settle for the status quo. We push boundaries, embrace challenges, and work together to create meaningful impact.

Mark Hjelle CEO Protos Security

Mark Hjelle

Chief Executive Officer, Protos Security

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Let's Talk Security

Protos packs more value into every dollar you spend.

There is no such thing as one-size-fits-all security. Let’s discuss your current security needs and how we can help you build a security program that is perfect for your company.

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© 2026 Protos Security — All rights Reserved

Protos
Headquarters

383 Main Ave, Suite 505
Norwalk, CT 06851, USA
Phone: 203.941.4700

Protos
Headquarters

383 Main Ave, Suite 505
Norwalk, CT 06851, USA
Phone: 203.941.4700

Mark Hjelle

Chief Executive Officer

Mark Hjelle is the CEO of Security Services Holdings, LLC as well as Protos Security and its subsidiaries. Mark is an experienced Chief Executive Officer and Board Member who has led large national business and facilities services firms for nearly 25 years delivering strong top- and bottom-line growth while building high-performing teams with strong culture. Most recently, he was CEO for CSC ServiceWorks, a B2B2C provider of technology-enabled consumer services. Prior to CSC, Mark was President of Brickman/Valleycrest a national provider of exterior landscape and snow removal services. Over the course of his 18-year tenure at Brickman, he held numerous leadership positions in operations, finance and business development. Mark holds a Bachelor of Science degree in Economics from The Wharton School of Business, University of Pennsylvania, a Master of Government Administration from the University of Pennsylvania Fels Institute of Government and a Law Degree from Case Western Reserve School of Law.