As the only true software-enabled managed security service provider in the industry, Protos continues to innovate and differentiate itself. Our unique model stands out from the competition as it allows us to focus on the fulfillment of clients’ needs and expectations, along with other supporting factors such as timely speed to being on post in emergency situations.
383 Main Ave, Suite 505
Norwalk, CT 06851, USA
Phone: 203.941.4700
383 Main Ave, Suite 505
Norwalk, CT 06851, USA
Phone: 203.941.4700
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.
