2018
G4S implements new global structure of three core service lines: Secure Solutions, Cash Solutions, Care & Justice Services.
2017
G4S selected to join FTSE4GOOD index in recognition its strong commitment to CSR
Sanjay Verma appointed Regional President Secure Solutions - Asia
G4S contracted to secure to Hinkley Point C, the first nuclear power station to be built in the UK in a generation
AMAG Technology launches first reader for smart phones
G4S launches fifth global employee survey
G4S Africa awarded Top Employer is 13 countries.

2016
G4S secures a renewed 20-year deal to manage Port Phillip Prison in Victoria, Australia
G4S becomes first private security company to secure the UK's Royal Mint
Tim Weller succeeds Himanshu Raja as Chief Financial Officer
2015
G4S wins major security contracts in Iraq and Afghanistan
G4S becomes worldwide security partner of choice for Huawei Technologies ltd
G4S launches ground-breaking product to revolutionise business travel safety
2014
G4S appoints John Kenning as Regional CEO for North America
G4S achieves emerging markets revenue of £2.4 billion
G4S establishes Safety First as a new value across the Group
G4S splits Latin America and North America regions to reflect their growing importance and the scale of opportunities 
G4S announces that Jenny Miles will succeed Irene Cowden as Group HR director
2013 
G4S announce three Non Executive Directors to the Group Adam Crozier, Tim Weller and Paul Spence
G4S sees its mining division grow by over 50%
G4S launches its landmark human rights policy
G4S announce Ashley Almanza to succeed Nick Buckles as Group CEO
G4S appoints Himanshu Raja as CFO and Eddie Aston as COO and later Regional CEO UK & Ireland
2012
G4S appoints John Connolly as new chairman
G4S strengthens Brazilian business with acquisitions of Vanguarda and Interativa
G4S acquires Deposita, South Africa’s leading provider of retail cash solutions technology
G4S acquires Chubb Emergency Response in the UK, providing key holding and response services
Also in the UK, the Lincolnshire Police Authority award G4S the first contract in the UK to build, design and staff a police station
2011
G4S appointed official security services provider for the London 2012 Olympic and Paralympic Games
G4S awarded two prison contracts and three work programme regions in the UK
G4S acquires The Cotswold Group in the UK providing surveillance, fraud analytics, intelligence and investigation services 
G4S acquires Munt Centrale Holand B.V. in The Netherlands, providing coin management services
2010
G4S appoints Clare Spottiswoode and Winnie Kin Wah Fok to the G4S Board as non-executive directors
G4S entered thriving Brazilian security market with acquisitions of Plantech and Instalarme
G4S acquired Skycom, a market leader in the African systems market

2009 
G4S acquires Secura Monde International Limited and Shiremoor International Engineering Limited, together, the UK’s leading specialist banknote and high security technical and commercial advisory companies
G4S acquires All Star International, one of the premier facilities management and base operations support companies providing services to the US Government
G4S acquires Adesta, US-based provider of integrated security systems and communication systems
G4S acquires Hill & Associates Consultants Limited, Asia’s leading provider of specialist risk mitigation consulting services
2008 
G4S acquires GSL, a leading provider of critical primary and support services and outsourced justice services
G4S is selected as a support contractor for the US Department of Energy 
G4S acquires Armorgroup, a leading provider of defensive and protective services to national governments and international peace and security agencies
G4S acquires RONCO Consulting Corporation, one of the world's premier humanitarian and commercial mine action, ordinance disposal and security companies
A landmark agreement reached with UNI, the global union federation, on an Ethical Employment Partnership, driving improvements in employment standards across the security industry
2007 
G4S enters the FTSE 100 index of leading companies on the London Stock Exchange 
G4S makes acquisitions in the UK, Ireland, the Netherlands, Saudi Arabia, South Africa, the Czech Republic, Serbia and Mozambique 
G4S begins providing electronic monitoring equipment and services in New Zealand 
G4S 4teen, an innovative global sports development programme, is launched
2006
The G4S brand identity is rolled out worldwide
Wackenhut Services, Inc. wins a key fire protection and emergency response contract with NASA
G4S wins Human Resources Excellence award for “Best Executive Development Programme”
G4S acquires a 50% share in a guarding, alarms and cash services business in Mozambique
Alf Duch-Pedersen succeeds Jorgen Philip-Sorensen, becoming Non Executive Chairman 
G4S announces sponsorship of Skandia Team GBR, backing Britain’s Olympic sailing bid in Beijing 2008 and London 2012
2005
Lars Nørby Johansen is succeeded as Chief Executive by Nick Buckles
2004
Securicor merged with Group 4 Falck's security businesses to form Group 4 Securicor and began trading on the London and Copenhagen Stock Exchange
Group 4 Falck’s security business merges with Securicor to create Group 4 Securicor in July 2004, and begins trading on the London Stock Exchange
Group 4 Technology acquires a Danish intruder alarm business
Group 4 Securicor’s UK Justice Services business wins three electronic monitoring contracts in England and Wales
Group 4 Falck sells Global Solutions and lists its safety business (Falck A/S) on the Copenhagen Stock Exchange
2003 
Securicor sells its distribution business to Deutsche Post 
Group 4 Falck sells its shares in Wackenhut Correction Corporation and Wackenhut Resources Inc.
2002 
Group 4 Falck enters the US security market by acquiring The Wackenhut Corporation, the second largest security services company in the US
Nick Buckles becomes Chief Executive of Securicor
2001 
Group 4 Falck acquires businesses in France and South Africa

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2000-2005
Continued mergers and acquisitions, Group 4 Falck is established and then Group 4 Securicor, the world’s second largest security provider...
Group 4 and Falck merge to become Group 4 Falck 
Group 4 Falck acquires security businesses in Germany, Austria, Finland, the Czech Republic, Norway and Hungary
Securicor acquires businesses in Canada, Africa, Europe, Asia and the US
1999 
Falck acquires security businesses in the Netherlands and Lithuania
Securicor sells its stake in Cellnet to British Telecommunications plc
1998 
Securicor forms a joint venture with Deutsche Post, the German post office
Falck acquires businesses in Germany, Poland and Estonia
Group 4 starts activities in Bangladesh
1997 
Securicor enters the US corrections market
Securicor acquires the first Private Finance Initiative prison in the UK
1996 
Group 4 begins a joint venture with British Gas to provide meter-reading services in the UK, and establishes AccuRead
Falck acquires businesses in Sweden and Norway
Securicor becomes a single plc
1995 
Falck is listed on the Copenhagen Stock Exchange
1994 
Group 4 establishes operations in the United Arab Emirates and the Ukraine
All activities in Spain are sold to Securitas AB
1993 
Falck acquires the security business of ISS Securitas, to become Falck Securitas
Group 4 acquires businesses in Austria and Canada
Securicor Custodial Services wins the contract to run the London Metropolitan Court Escort and Custody services
1991 
Baltica sells 55% of its shares in Falck
Group 4 acquires businesses in Belgium and Turkey 
Group 4 begins managing the first privatised prison in the UK, at Wolds in Humberside
1990 
Group 4 provides security services to government and private organisations in Hungary. 
Securicor establishes its Custodial Services operations