Protos Security Acquires ControlByNet

concepts of security monitoring

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

Protos Security Announces the Strategic Acquisition of Mulligan Security

Security Services Holdings, LLC (dba Protos Security), the leading tech-enabled security services company in North America, announces that it has acquired Mulligan Security. Protos is a portfolio company of Southfield Capital. Mulligan’s founder and senior leadership team will remain in their existing roles post-close.

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.