Tracked deals
5
5 tracked deals across 2022-2026.
Operating Company
Business Services
Protos Security
Norwalk, Connecticut, United States
Modern security services provider offering end-to-end, tech-enabled guarding, off-duty law enforcement, specialized and remote security services, with real-time visibility, reporting, and technology-driven transparency ("Protos Promise").
- Focus Areas
- Security guard services, Off-duty law enforcement services, Remote guarding/monitoring
- Website
- protossecurity.com
Recent pace
1
1 tracked deal announced in the last 12 months.
Deal mix
Addon
5 addon
Protos Security Acquisition Volume by Year
Last 3 years
Actual
Full-year estimate
Supporting Data
Recent Transactions
-
April 21, 2026
- Buyer
- Protos Security, Security Services Holdings LLC (Protos)
- Target
- AT-RISK International
- Industry
- Cybersecurity
- Location
- District of Columbia, United States
- Type
- Addon
Protos Security, a Southfield Capital portfolio company, acquired AT-RISK International, a Washington, D.C.-based provider of executive protection, intelligence, and risk consulting services. The deal expands Protos’ intelligence-led, software-enabled integrated protection platform with additional high-value specialized services.
-
- Buyer
- Protos Security (Security Services Holdings LLC), Southfield Capital
- Target
- Summit Off Duty Services
- Industry
- Professional Services
- Location
- Texas, United States
- Type
- Addon
Security Services Holdings LLC (Protos Security), a Southfield Capital-backed, tech-enabled security services provider, has acquired Summit Off Duty Services, an Irving, Texas-based off-duty police officer security provider. The deal — Protos' tenth acquisition since partnering with Southfield — expands Protos' off-duty law enforcement capabilities and scale (Summit provides access to more than 60,000 police officers across 1,400+ agencies); terms were not disclosed.
-
September 19, 2022
- Buyer
- Protos Security, Southfield Capital
- Target
- Blue Star Security
- Industry
- Professional Services
- Location
- Illinois, United States
- Type
- Addon
Protos Security, a portfolio company of Southfield Capital, has acquired Blue Star Security, a Chicago-based provider of off-duty and retired law enforcement officers. The add-on expands Protos' off-duty police offering and Midwest footprint; the transaction closed on September 19, 2022.
-
September 1, 2022
- Buyer
- Protos Security (Security Services Holdings LLC), Southfield Capital
- Target
- MG Security Services
- Industry
- Professional Services
- Location
- New York, United States
- Type
- Addon
Protos Security (a portfolio company of Southfield Capital) has acquired MG Security Services, a New York City–based provider of armed and unarmed security guard services, crisis management, fraud prevention and private investigations. The add-on expands Protos' East Coast footprint, scales its direct guard operations (MG employs over 1,200 guards) and furthers growth in end markets such as healthcare and commercial real estate.
-
August 30, 2022
- Buyer
- Protos Security (Security Services Holdings LLC), Southfield Capital
- Target
- ControlByNet
- Industry
- Professional Services
- Location
- Georgia, United States
- Type
- Addon
Protos Security (a Southfield Capital portfolio company) has acquired ControlByNet, a Norcross, Georgia-based provider of cloud-based video management and remote guarding solutions. The add-on deal, which closed August 15, 2022, expands Protos' technology-enabled managed security offerings; Monroe Capital and Wells Fargo provided debt financing and ControlByNet's founder Ryan Strange will remain in leadership post-close.
Related Acquisition Pages
Professional Services Buyers & Acquisitions
4 tracked deals by Protos Security.
Cybersecurity Buyers & Acquisitions
1 tracked deal by Protos Security.
Acquisitions in Georgia
1 tracked deal by Protos Security.
Acquisitions in Illinois
1 tracked deal by Protos Security.
Acquisitions in New York
1 tracked deal by Protos Security.
Acquisitions in Texas
1 tracked deal by Protos Security.
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