Protos Security History – Our Story

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When Protos Security was founded in 2006, the vision was simple: there had to be a better way to manage security programs.

The traditional model was fragmented and difficult to scale, with organizations often managing multiple providers, contracts and invoices with limited visibility into what was happening across their security programs. Protos set out to change that by combining local security expertise with centralized management, accountability and technology.

What began as a modern alternative to traditional guarding has evolved significantly over the past 20 years.

Protos has expanded across North America, built one of the nation’s largest off-duty law enforcement networks and broadened its capabilities beyond guarding into remote monitoring, specialized services, intelligence, executive protection and risk management. At the same time, continued investment in proprietary technology has connected clients, providers, field personnel and Protos’ operations with greater visibility and access to real-time information.

Each step has strengthened the same idea Protos was built around: give organizations the flexibility to deploy the right security resources, in the right places, at the right time – all through one accountable partner.

Today, Protos delivers an integrated, technology-enabled security ecosystem built to adapt as client needs and risks evolve.

Read on as we look back at the milestones that transformed a bold idea into the Protos of today.

20
Years
<br>
OF GROWTH, INNOVATION & LEADERSHIP

2006

Founded

A modern alternative to the traditional guarding model.

One accountable partner instead of dozens of invoices and contracts.

2013

TECHNOLOGY ADVANCES

Client Portal makes real-time reporting available anywhere.

Clients gain unprecedented visibility into their security program.

2016

NORTH AMERICA EXPANSION

Operations expand into Canada and Puerto Rico.

Supporting enterprise clients wherever business takes them.

2019

INVESTMENT & INNOVATION

Private equity investment fuels growth while Protos Connect app modernizes the field experience.

Accelerated innovation for clients and providers.

2021

OFF-DUTY LEADERSHIP

Acquisition vastly expands off-duty capabilities, creates the nation's largest provider.

Greater flexibility to scale protection as needs evolve.

2022

INTEGRATED PROTECTION SOLUTION

Expanded beyond guarding and off-duty into remote monitoring and specialized services.

More solutions. One partner.

2024

CONNECTED MARKETPLACE

Vendor Portal and Protos Select app digitally connect providers and field teams.

Faster communication, greater transparency and a better service experience.

2025

SMARTER OPERATIONS

Coordinator Portal transforms off-duty management providing essential tools for law enforcement and agency partners.

Events, operate from the same connected platform and clients, operate from the same connected platform.

2026

COMPLETE PROTECTION ECOSYSTEM OPERATIONS

Expands intelligence, executive protection and global risk capabilities as Protos celebrates 20 years.

The industry's most complete, technology-enabled security marketplace.

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.