Workplace Investigations: Protecting Your Organization from Liability

When concerns surface inside your organization—harassment claims, policy violations, theft, misconduct, or workplace violence threats—how you respond matters. A slow, inconsistent, or poorly documented response can expose your company to legal liability, reputational damage, and internal distrust. Professional workplace investigations are not just about finding out what happened. They are about protecting your organization, your […]

Production Security Planning for Film Shoots in High-Traffic Urban Areas

Filming in a busy city brings energy, realism, and production value you can’t fake on a soundstage. It also brings traffic congestion, pedestrian interference, theft risks, and unpredictable disruptions. If you’re planning a shoot in a high-traffic urban environment, security cannot be an afterthought. It needs to be built into your production plan from day […]

School Security Protocols That Balance Safety and a Positive Learning Environment

Creating a secure school environment is not just about locked doors and surveillance cameras. It is about protecting students, staff, and visitors while preserving a culture where learning thrives. The right approach to school security should feel present but not oppressive, structured but not restrictive. When thoughtfully designed, security protocols can support both safety and […]

Place of Worship Security Strategies to Protect Congregations During Passover

Passover is one of the most meaningful times of the year for Jewish families and communities. Synagogues see increased attendance for services, community seders, and special events. With larger crowds and heightened visibility, security planning becomes essential. The goal isn’t to create a fortress. It’s to create a safe, welcoming environment where congregants can focus […]

Event Security for Large-Scale Gatherings: Ensuring Safety at Sporting Events, Festivals, and Conventions

Planning a large-scale event comes with unique challenges and responsibilities. From sporting events and music festivals to trade shows and conventions, these gatherings involve significant crowds, valuable assets, and complex logistics. Ensuring the safety of attendees, staff, and property requires more than basic precautions – it demands a strategic approach with trained professionals who can […]

Organized Retail Crime in 2026: Emerging Trends and What Retailers Need to Know

Retail theft is escalating at an unprecedented pace, posing serious challenges for stores nationwide in 2026. Incidents of shoplifting and merchandise theft are becoming increasingly frequent and organized, disrupting daily operations, straining staff, and cutting into already tight profit margins. Stores that once faced occasional theft are now confronting persistent, coordinated attempts that demand proactive […]

Supply Chain Security: 5 Proven Strategies to Prevent High-Value Cargo Theft

High-value cargo theft is a growing concern for businesses in logistics, manufacturing, and retail. Criminals are becoming increasingly sophisticated, targeting shipments at warehouses, during transit, and even at delivery points. Effective supply chain security requires proactive measures, expert oversight, and technology-driven solutions. Here are five proven strategies to safeguard your high-value shipments. Supply Chain Security […]

Executive Protection Planning for Board Meetings and Shareholder Events

Board meetings and shareholder events are high-stakes by design. Sensitive financial data is discussed, leadership decisions are scrutinized, and emotions can run high – especially during earnings seasons, mergers, restructures, or leadership transitions. These moments place executives and board members in a uniquely exposed position, making thoughtful security planning not just prudent, but essential. Executive […]

Executive Protection in 2026: Managing Elevated Risk at the Start of the Year

The start of a new year is usually framed as a clean slate. From a security standpoint, it’s anything but. January consistently brings heightened risk for executives, public figures, and high-net-worth individuals as new business initiatives launch, public visibility increases, and unresolved threats from the prior year resurface. Heading into 2026, those risks are more […]

Investigative Services for 2026: How Early Investigations Prevent Long-Term Reputational Damage

Reputation is one of the hardest things to build—and one of the easiest things to lose. As organizations head into 2026, the speed at which information spreads, both internally and externally, means that small issues can become public problems fast. Fraud, misconduct, compliance concerns, and internal disputes don’t just create operational headaches. Left unchecked, they […]

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.