Allied Universal Acquires MSA Security from GreyLion
September 20, 2021
Allied Universal has executed a definitive agreement to acquire New York–based MSA Security from private equity firm GreyLion. MSA, a provider of threat protection and explosive-detection K9 teams with revenue approaching $200 million and nearly 700 canine teams deployed worldwide, will expand Allied Universal’s specialized capabilities and national K9 program; terms were not disclosed.
- Buyers
- Allied Universal
- Targets
- MSA Security
- Sellers
- GreyLion
- Industry
- Professional Services
- Location
- New York, United States
- Transaction Type
- Buyout
Explore More
Related Acquisitions
-
Allied Universal Acquires SSC Security Services Corp
May 26, 2026
Professional Services
Allied Universal completed its all-cash acquisition of SSC Security Services Corp. via a statutory plan of arrangement for $4.4075 per share. The acquired holding company amalgamated with its operating subsidiary to form Logixx Security Inc., while certain legacy assets and its cyber security business were carved out and purchased in a concurrent management buy-out.
-
Allied Universal Acquires Mulligan Security from Protos (Southfield Capital-backed Protos)
July 3, 2025
Professional Services
Allied Universal has acquired Mulligan Security (including MG Security Services) from Security Services Holdings LLC (Protos) and Southfield Capital; the transaction closed on July 3, 2025. The divestiture enables Protos to refocus investment and resources on its tech-enabled managed services platform.
-
Allied Universal Acquires Five Security and Facilities Services Companies
May 20, 2025
Professional Services
Allied Universal completed five acquisitions in early 2025, adding Pinnacle Security, Diversified Maintenance Systems (DMS), Celar Security / Soltes Technology (Colombia), CI Security Specialists (CISS) and CDA, Inc. d/b/a MaxSent to its portfolio. The transactions expand Allied Universal's geographic footprint and service capabilities across guarding, facilities management, events security and security technology in the U.S. and South America.
-
Allied Universal (MSA Security) Acquires Elite Tactical Security Solutions
April 11, 2023
Professional Services
Allied Universal, through its MSA Security business, has acquired Elite Tactical Security Solutions to expand its security and canine-detection capabilities in the Las Vegas market. Elite Tactical’s 40 security professionals and 10 canine detection teams — along with an ATF-licensed canine training center in Henderson, Nevada — will be integrated into Allied Universal/MSA Security operations to support hospitality, events and commercial venue clients.
-
Allied Universal Acquires South Carolina-Based American Security
May 16, 2022
Professional Services
Allied Universal has acquired American Security, a South Carolina–based regional security services provider founded in 1975. The acquisition adds more than 1,200 employees and strengthens Allied Universal's presence and service capabilities across the Southeastern United States (Alabama, Georgia, Kentucky, North Carolina, South Carolina, Tennessee and Virginia).
-
Allied Universal Acquires SecurAmerica
January 20, 2021
Professional Services
Allied Universal has acquired Atlanta-based SecurAmerica, a privately held security services firm with operations across more than 100 markets. The deal expands Allied Universal’s scale and capabilities in security and facilities services; terms were not disclosed.
Build a buyer list for your deal
Find active buyers from recent acquisition patterns and move straight into outreach.