The Protos Experience

OUR Seamlessly
Integrated
services

Protos promises a modern security experience that never settles and dynamically adapts 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.

Our proprietary platform puts improved staffing, vetting, training, visibility, accountability and flexibility at your fingertips, including custom reporting and actual-time billing.

From the C-team to the field team, our organization is committed to hassle-free and always-accountable customer experience across all four of our service lines: guarding, off-duty, specialized and remote.

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security guard standing at their post
security guard sitting at their post
security cameras
security guard working on computer

We're purpose-built to proactively protect you with integrity and accountability.

Local expertise, agile coverage

By vetting, training, and orchestrating thousands of local owner/operator security vendors and the largest off-duty law enforcement network, we can instantly provide reliable, experienced security professionals who care about your community as much as you do. That means scalable protection for people and property in any situation.

Modern technology meets security innovation

Our dynamic security management platform puts improved staffing, vetting, training, visibility, accountability, and flexibility at your fingertips. Now you can easily manage a security strategy—and save time and money with more efficient operations—all while reducing risk and liability.

Unmatched, end-to-end transparency

We take responsibility for the safety and security of your operations, both when it works, and when it needs to improve. We proactively respond to and solve any issues with urgency, while providing custom reporting and actual-time billing so you know exactly what’s going on.

Relentless customer advocacy

We’re relentless about living up to our promises. If issues arise, we will not rest until we make it right. From the C-team to the field team, our entire organization is committed to your hassle-free and always-accountable customer experience.

Our
Services

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Icon for guarding services

Guarding

Services

By managing and coordinating relationships with thousands of local owner/operator security vendors, Protos can quickly assemble expert teams to adapt to any situation, at any location.

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icon for off-duty services

Off-Duty

Services

Protos offers second-to-none coverage through the nation’s largest off-duty law enforcement network.

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security related icon for Protos Specializes Services.

Specialized

Services

As part of our comprehensive security options, Protos offers fully customizable end-to-end solutions, including executive protection, investigations, high value transport, production security, site assessments and more.

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icon of a surveillance camera for Protos Remote Services

Remote

Services

When you need eyes on your property with or without a physical presence, Protos provides remote guarding backed by an experienced team.

Testimonials

Latest News &
Blog Updates

Protos Security, a leading provider of integrated protection solutions across North America, announces the re-launch of its website, protossecurity.com. This refreshed digital presence brings together a bold new brand design and updated messaging that powerfully communicates who Protos is, what the company offers and how it continues to lead the way in delivering dynamic, software-enabled security solutions.
In today’s retail environment, businesses face growing challenges from organized theft, public behavior and budget pressures. This whitepaper outlines how leading retailers are evolving their security strategies – using integrated technology, flexible staffing and data-backed insights to stay ahead of risk.
Construction sites are high-value targets for theft, vandalism and unauthorized access. Remote video monitoring is a powerful solution to these challenges, offering around-the-clock oversight, advanced deterrence and flexible deployment options. When paired with solar-powered units and integrated speaker systems, these systems can actively prevent incidents.
Protos Security, a leading provider of integrated protection solutions across North America, announces the re-launch of its website, protossecurity.com. This refreshed digital presence brings together a bold new brand design and updated messaging that powerfully communicates who Protos is, what the company offers and how it continues to lead the way in delivering dynamic, software-enabled security solutions.
In today’s retail environment, businesses face growing challenges from organized theft, public behavior and budget pressures. This whitepaper outlines how leading retailers are evolving their security strategies – using integrated technology, flexible staffing and data-backed insights to stay ahead of risk.
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.