Protos Security Announces the Strategic Acquisition of Summit Off Duty Services

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 Announces the Acquisition of Blue Star Security

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

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 Security Acquires ControlByNet

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 Expands Portfolio with Off Duty Services Acquisition
Security Services Holdings LLC (dba Protos Security), the leading tech-enabled managed services security guarding provider in North America, announces that it has acquired Off Duty Services, Inc. and its U.S. and Canadian subsidiaries (ODS).
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 Security and Southfield Capital Announce the Strategic Acquisition of Security Resources
Southfield Capital, a premier lower middle market private equity firm, announced today that Protos Security (“Protos”), a tech-enabled managed security services provider, has completed its strategic acquisition of Security Resources (“SRI” or the “Company”), a leading US-based managed security services and direct guard solutions provider.