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We operate in more than 50 countries around the world. If your country is not on the list, please refer to our global contacts.

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Global contacts

We operate in more than 50 countries around the world. If your country is not on the list, please refer to our global contacts.

View contacts
Global contacts

We operate in more than 50 countries around the world. If your country is not on the list, please refer to our global contacts.

View contacts
Global contacts

We operate in more than 50 countries around the world. If your country is not on the list, please refer to our global contacts.

View contacts
Global contacts

We operate in more than 50 countries around the world. If your country is not on the list, please refer to our global contacts.

View contacts
About ISS
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History

 
1901 ISS was founded in Copenhagen, Denmark as a small security company with 20 night watchmen named Kjøbenhavn-Frederiksberg Nattevagt (Copenhagen-Frederiksberg Night Watch)
   
1934 ISS entered the cleaning business with the establishment of Det Danske Rengørings Selskab A/S (The Danish Cleaning Company) as an independent subsidiary of the security company
   
1946 The first geographical expansion outside Denmark: Swedish subsidiary established
   
1968  The company adopted the ISS name
     
1973  Overseas expansion started
     
1975  Group revenue reached DKK 1 billion
     
1977  ISS shares listed on the Copenhagen Stock Exchange
       
1989  The total number of employees in the Group reached 100,000
     
1997 Strategy “aim2002“ was launched. This strategy focused on Multi Services – selling a number of services to the same customer
   
1999  ISS acquired Abilis, the second largest European provider of cleaning and specialised services, in a DKK 3.6 billion acquisition, the Group’s largest ever. Abilis had about 50,000 employees and annual revenues of DKK 5.2 billion in 1998. The total number of employees in the Group reached 200,000
   
2000 A new five-year strategy “create2005“ was launched, introducing the Facility Services concept
   
2003 ISS’s first major pan-European Integrated Facility Services contract signed
     
2005 A new strategy was introduced aiming at a continuous transformation of ISS towards an Integrated Facility Services company. ISS A/S was acquired by funds advised by EQT Partners and Goldman Sachs Capital Partners, and de-listed from the Copenhagen Stock Exchange. The total number of employees in the Group reached 300,000
     
2006 Group revenue passed DKK 50 billion. ISS made the second-largest acquisition in company history, when acquiring the outstanding 51% of the shares in Tempo Services Ltd. in Australia
     
2007 Group revenue passed DKK 60 billion. ISS entered the US market through the acquisition of Sanitors Inc. The total number of employees in the Group reached 400,000
     
2008 Introduction of ISS’s strategy plan “The ISS Way”, which is built on four strategic cornerstones: customer focus, people management, the IFS strategy and a multi-local approach. ISS’s largest ever international Integrated Facility Services contract was signed
   
2010 Group revenue passed DKK 70 billion. The total number of employees in the Group reached 500,000
      
2012 Ontario Teachers' Pension Plan (Teachers') and KIRKBI Invest A/S make EUR 500 million investment in ISS
     
2013   ISS is named world’s best outsourcing company as the International Association of Outsourcing Professionals ranks ISS as the #1 on its annual list of the world’s best outsourcing service providers – The Global Outsourcing 100.

   
2014
 
  ISS is listed in the Copenhagen stock exchange and once again named the world’s best outsourcing company by the International Association of Outsourcing Professionals 

Contact ISS head office

Contact ISS head office

Head office
ISS World Services A/S
Buddingevej 197
DK-2860 Søborg
Denmark‎
Tel: +45 38 17 00 00

See also our list of offices worldwide

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Corporate brochure

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Read more about  ISS and our service performance here

The history of ISS

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Watch our history movie.

Creating a winning culture

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Read our book in the ISS culture: The ISS Way - Creating a winning culture. 

The book is a management tale on how to unleash the power of the human touch.

Read the book