Driving Efficiency in Law Enforcement: How Protos Select Transforms Off-Duty Operations

A digital mockup displaying six smartphones, each showing different screens of a mobile app interface named "Protos Select."

Protos Security spotlights the growing success of Protos Select, a mobile platform purpose-built for off-duty law enforcement seeking flexible, high-quality job opportunities. Since its rollout, Protos Select has become a trusted solution for both off-duty law enforcement and agencies, simplifying off-duty shift management and creating new standards for transparency, speed and reliability.

Protos Security to Showcase Innovative Security Solutions at ISC West 2025

ISC West logo with cityscape background

Protos will be exhibiting at ISC West in Las Vegas. At ISC West, Protos will demonstrate its latest advancements in security technology, illustrating how its software ecosystem enhances efficiency, transparency and scalability, improving security outcomes and providing the visibility businesses need to operate with confidence.

Protos Security Announces the Strategic Acquisition of Summit Off Duty Services

summit off duty services logo

Security Services Holdings LLC (dba Protos Security), the leading tech-enabled vendor managed services security provider in North America, announces that it has acquired Summit Off Duty. Protos Security is a portfolio company of Southfield Capital and adding Summit to the portfolio expands the service offering and value to its customer base. The transaction closed on March 1, 2024.

ISCPO Names Protos Security as Preferred Vendor Partner

protos security strategic partnership cogs

The International Supply Chain Protection Organization (ISCPO) announced that Protos Security has joined as the organization’s preferred vendor partner as ISCPO continues to support its members and the supply chain security community.

Protos Security Names Michael Jacobs COO

Mike Jacobs COO Protos Security

Security Services Holdings, LLC (dba Protos Security), the leading technology-enabled managed services platform in North America delivering an integrated suite of physical and technology-based security services to commercial customers, announced it has hired Michael Jacobs as Chief Operating Officer, effective immediately.

Mulligan Security Appoints Chris Fitzpatrick as President

Chris Fitzpatrick Mulligan Security

Mulligan Security, a Protos Company, is pleased to announce that Chris Fitzpatrick has been named as President of the company. Chris will assume responsibilities of Kevin Mulligan, Founder and President of Mulligan Security, who will transition to serve as a Strategic Advisor to Mulligan effective immediately.

Protos Security Names Mark Hjelle Chief Executive Officer

Mark Hjelle headshot

Security Services Holdings, LLC (dba Protos Security), the leading technology-enabled managed services platform in North America delivering an integrated suite of physical and technology-based security services to commercial customers, announced today that its Board of Directors has appointed Mark Hjelle as Chief Executive Officer and a member of the Board, effective immediately.

Protos Security Announces the Acquisition of Blue Star Security

Blue Star Security logo

Security Services Holdings LLC (dba Protos Security), the leading tech-enabled managed security services provider in North America, announces that it has acquired Blue Star Security. Protos Security, a portfolio company of Southfield Capital, expands its service offering and the value to its customer base with the acquisition of Blue Star Security.

Protos Security Acquires MG Security Services

aerial image of New York City at night

Security Services Holdings LLC (dba Protos Security), the leading tech-enabled managed services security guarding provider in North America, announces that it has acquired MG Security Services. Protos Security is a portfolio company of Southfield Capital and adding MG Security Services to its offering expands Protos’ presence across the East Coast.

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.