G4S is a renowned global security company, specializing in the provision of security services and solutions. Its offerings include manned security, integrated security solutions, cash management services, and advanced security systems. In April 2021, G4S was acquired by Allied Universal, creating an unparalleled global leader in the security industry. G4S continues to operate as a significant and respected brand within the Allied Universal portfolio, leveraging its extensive expertise, long-standing heritage, and worldwide presence to protect businesses, governments, and communities. The combined entity of Allied Universal, including G4S operations, employs over 800,000 professionals globally.
Historically, this location served as the central command for G4S's global operations, strategic planning, and corporate governance. It now functions as a key regional hub within the Allied Universal structure.
A prominent office building located in central London, reflecting the company's international stature and accessibility.
The work culture has historically been defined by professionalism, a strong focus on security protocols, operational excellence, and client service. This is now blended with Allied Universal's emphasis on customer care, innovation, and employee development.
This location was instrumental in G4S's development into one of the world's largest security companies, serving as the nerve center for its international expansion and diverse service lines pre-acquisition.
Through its integration with Allied Universal, G4S contributes to a vast global network spanning approximately 90 countries across North America, Europe, Africa, Asia Pacific, and Latin America. The combined entity offers a comprehensive suite of security solutions, including manned guarding, security technology and systems, cash and valuables management, risk advisory and consulting services, and specialized support services catering to diverse industries and client needs worldwide.
Southside, 105 Victoria Street
London
England
United Kingdom
Address: 1395 University Blvd, Jupiter, FL 33458, USA
Serves as a key center for delivering comprehensive security solutions across the United States and Canada, supporting Allied Universal's extensive North American presence and integrating former G4S operations.
Address: 292 West Avenue, G4S House, Centurion, 0157, South Africa
Acts as an important hub for tailoring global security standards to the specific needs and challenges of the African market, ensuring service delivery and operational management across the continent.
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As of April 2025, G4S' leadership includes:
G4S has been backed by several prominent investors over the years, including:
Following G4S's acquisition by Allied Universal in 2021, executive leadership has been integrated. Recent significant appointments have occurred at the Allied Universal level, impacting regional and service line leadership relevant to former G4S operations. Specific G4S-branded executive changes are minimal as the entity is part of Allied Universal.
Discover the tools G4S uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
G4S, as part of Allied Universal, primarily utilizes email formats based on employee names and the g4s.com domain. Common structures include first.last or firstinitiallast. With ongoing integration, some roles may also use or transition to the aus.com (Allied Universal) domain.
first.last@g4s.com, flast@g4s.com
Format
john.doe@g4s.com
Example
85%
Success rate
Allied Universal News • 2024-03-27
Allied Universal's Compliance and Investigations team received a 2024 Govies Government Security Award for their outstanding work in providing security solutions to government clients. This highlights the company's commitment to excellence in the public sector....more
Allied Universal News • 2024-02-20
Allied Universal released its 2023 ESG report, showcasing progress in sustainability, diversity and inclusion, and ethical governance. The report underscores the company's commitment to responsible business practices across its global operations, including those of G4S....more
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