G4S is the world's leading international security solutions group. They specialise in outsourced business processes in sectors where security and safety risks are considered a strategic threat. G4S has a truly global business with large established market positions in developed markets and outstanding positions in fast growing emerging markets G4S has a unique global footprint with operations in over 110 countries, including a strong presence in higher growth developing markets. G4S employ 623,000 people world-wide, and are the largest security solutions provider in the world. Whether you require a security solution in one location or across multiple continents, their global experience is always on hand to bring you advantages.

Ashley Almanza



Sok Wah Lee

Director of Compensation and Benefits


Helen Parris

Director, Investor Relations


Stephane Verdoy

Group Sales and Marketing Director

Tim Weller


20 past transactions

Wackenhut De Colombia

Acquisition in 2007
Wackenhut De Colombia provides cash processing and transportation, logistics, information backup.

SSE Do Brasil Ltda

Acquisition in 2010
SSE Do Brasil Ltda is a company that was acquired by G4S in 2010.

Quantico Limited

Acquisition in 2008
Quantico Limited offers intellectual property consulting, brand protection commercial investigations.

Fidelity Cash Management Services

Acquisition in 2007
Fidelity Cash Management Services provides cash services in South Africa.


Acquisition in 2009
Adesta integrates some of the most complex communications and security systems in the industry today. They offer a truly converged solution, along with strong project management expertise and superior customer service. Adesta can envision, design, build and maintain systems to meet all their customers' needs – regardless of the size, complexity or location of the project. Their knowledge of a wide range of technologies, products and systems, combined with strict attention to design details, provides cost-effective, reliable and scalable solutions.

Ridderikhof Groep

Acquisition in 2007
Ridderikhof Groep offers security services including fire prevention in the form of safety monitoring.

The Cotswold Group

Acquisition in 2011
The Cotswold Group is an investigation company that provides exceptional results via its specialist investigation & intelligence services. The company specializes in intelligence led fraud and liability investigations across the public and private sector, working for a range of industries, including some of the world's largest insurance companies, corporate businesses and local authorities. The Cotswold Group directly employs over 325 staff members including an experienced team of Field Investigators, a dedicated desktop team and a specialist research and intelligence department.

Instalarme Soluções Eletrônicas

Acquisition in 2010
Instalarme Soluções Eletrônicas is a security start-up that specializes in sale and installation of alarms.


Acquisition in 2010
G4S NSSC, Inc. provides security products and services to regulated and nuclear industries. The company provides design & engineering, technology integration, and maintenance and support services. It offers video capture system that provides pre and post-alarm event capture, recording, and storing of video from cameras for rapid alarm assessment; and ADANS, an advanced detection, assessment, and neutralization system that provides early detection of adversaries approaching the perimeter.

First Security SPRL

Acquisition in 2007
First Security SPRL provides personal and real estate security services.

RONCO Consulting Corporation

Acquisition in 2008
RONCO Consulting Corporation is a defense & space company that provides web design and hosting services. RONCO Consulting Corporation, an international professional services firm based in Washington, D.C. and founded in 1974, currently specializes in humanitarian and commercial mine action and ordnance disposal, security assistance, canine detection services, and specialized training.

Hill & Associates

Acquisition in 2009
Hill & Associates operating in a volatile business environment means challenges can spring up without warning. Deep local knowledge allows us to react swiftly and effectively, no matter where, how or why the crisis has arisen. We have helped our clients: Carry out a series of threat, vulnerability and risk assessments across a portfolio of hotels Design and train crisis management plans for relevant business risks covering information security, cyber security, fires, floods, medical emergencies, earthquakes, civil unrest and criminal threats Manage security and logistics for a corporate event with thousands of attendees Protect personnel during periods of transition, downsizing and restructuring Assess locations and evaluate facilities’ access points, perimeter and environment Provide comprehensive risk assessments, crisis planning, and training for many international schools across Asia

Plantech Engenharia e Sistemas

Acquisition in 2010
Plantech Engenharia e Sistemas is an integrator in the Brazilian security systems market.

Global Solutions Limited

Acquisition in 2007
GSL is an international leader in the provision of critical support services for governments, companies and public authorities. Headquartered in Broadway, Worcestershire, UK, GSL employs approximately 9,000 staff in the UK, Australia and South Africa.

OneService, Inc.

Acquisition in 2005
OneService, Inc provides insured shipping solutions to the jewelry industry.

Nuclear Security Services Corporation

Acquisition in 2009
Nuclear Security Services Corporation is known for detection and assessment systems for high level security facilities in the U.S.

Touchcom, Inc

Acquisition in 2008
Touchcom, Inc is installs and maintains web-based electronic security systems and facility management software.

ArmorGroup International plc

Acquisition in 2008
ArmorGroup offers defensive and protective security services to national governments, multinational corporations.

Sunshine Youth Services

Acquisition in 2009
Sunshine Youth Services offers child related social services.

All Star International

Acquisition in 2009
All Star International, Inc. provides facilities operations and maintenance, military family housing maintenance, renovation and privatization, logistics, aerospace support, construction, vehicle and fleet operations and maintenance, integrated facilities maintenance, and medical facilities support services worldwide. Its services include property, energy, construction, supply, fuels, and traffic management; utility, uninterruptible power, fire detection/prevention, electrical, water, sewer line, medical gas, and distribution systems, as well as utilities, roads, grounds, transportation, emergency lights, transformers, medical and non-medical equipment, elevators, air handling controls, and government defense medical logistics standard support database maintenance, repair, installation, operation, engineering, replacement, and support; air crew and passenger billeting, processing, and transport; and cargo management, movement, loading, and control. Its services also comprise custodial, security, range support, calibration, fueling, change of occupancy, mail, vending, capital planning and budgeting, reprographics, scientific lab analysis, sanitary and wastewater systems, refuse collection and recycling, inventory control, security alarm systems, pest control, hazmat control, warehousing, crating, packing and distribution, combat readiness support, air terminal operations, military unit deployment processing, transient aircraft support, fuel and cryogenic storage, restoration, food service equipment, materials control, medical waste disposal, and building renovation and restoration. It serves contracts and customers on an international, national, regional, or local basis. The company was founded in 1983 and is based in San Diego, California with regional offices in Fort Worth, Texas; and Kaiserslautern, Germany. All Star International, Inc. operates as a subsidiary of G4S Government Solutions, Inc.