Mulligan Security
Security and InvestigationsNew York, United States501-1000 Employees
Mulligan Security, based in Manhattan, New York, provides security and fire safety professionals to prime high-rise office buildings, major corporate facilities, and company headquarters. The company delivers security and life-safety services through a trained staff, focusing on protecting large urban facilities. It operates as a division of Protos Security, a technology-enabled provider in the security services sector. Within the security and investigations industry, Mulligan Security concentrates on direct guard and fire safety solutions for sizable commercial properties. In August 2025, Allied Universal Security announced its acquisition of Mulligan Security, indicating a change in ownership within the broader security services market.