Protos Security Delivers an Immersive, Insight-Driven Experience at GSX 2025

Protos Security recently attended the Global Security Exchange (GSX) 2025 Conference in New Orleans, LA. Protos made a strong impact, leveraging our deep industry expertise to better understand and address the evolving needs of businesses across sectors. Through live demos, thought leadership sessions, interactive engagement walls and more, Protos demonstrated how technology, transparency and trust continue to define the next generation of security solutions.

The People, Places and Purpose Behind Protos’ Guarding Services

Did you know that Protos Security is considered one of the fastest-growing guarding companies in North America? Since being acquired by the private equity firm Southfield Capital in 2019, Protos has experienced remarkable growth – acquiring new businesses, increasing our workforce, advancing the proprietary software that first set us apart and broadening our service offerings to include guarding, off-duty, specialized and remote services divisions.

Specialized. Trusted. Committed: Highlighting Blue Star During National Police Week

Graphic for Blue Star, part of Protos Specialized Services, featuring headshots of Jeff Salvetti and Anthony Varchetto. On the left is the Blue Star logo with a bold blue star inside a circle and the text 'Blue Star' above the 'Protos Specialized Services' logo

Each May, National Police Week is observed to honor the courage and commitment of law enforcement across the country. Since 1962, it has been a time of remembrance and gratitude, but more than that, it calls for action. At Protos, we recognize that supporting law enforcement goes beyond just a week or month. It means investing in their well-being, standing beside them during hard times and ensuring their voices are heard.

Chicago’s Finest Protection: Blue Star Security Featured on WGN TV

Chicago's finest protection - blue star security featured on WGM TV

A recent WGN-TV segment featured an interview with Anthony Varchetto, President, and Jeff Salvetti, Vice President, of Blue Star Security, which they co-founded. They discussed how Blue Star provides premier security and investigative services across Chicago and North America through Protos Security’s Specialized Services Division.

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.

Protos Security History – Our Story

lobby of a grand hotel with a green overlay

Protos Security was founded in 2006 by Chris Copenhaver and Patrick Henderson, two visionary entrepreneurs who had a shared goal of bringing efficiency and technology to sluggish industries. Their combined dream of streamlining security officer programs resulted in our real-time, all-in-one portal.

Employee Growth Success Story – Stephanie Cherubin

Stephanie Cherubin headshot

Stephanie started her career with Security Resources Inc. (SRI), a company acquired by Protos in 2019, over 10 years ago. Joining a a Dispatcher, she had big plans of moving up in her career and learning as many new skills as possible. Working in the security industry was a new and exciting adventure for her, and she was just getting started.

Protos Security at GSX – An Interview with Dan Arnold

Dan Arnold headshot

Protos Security recently attended the Global Security Exchange (GSX) 2023 Conference in Dallas, TX. On the show floor, Dan Arnold, our Senior Vice President of National Operations, had the opportunity to participate in an interview with Ben Thomas, host of MarketScale.

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.