IAS

International Approval Services

Cleveland, Ohio; USA

ICGTI (Europa)

International Centre for Gas Technology Information; c/o Naturgassens Hus [1]

Hørsholm, Dänemark

ICGTI (USA) 

International Centre for Gas Technology Information [2]

Fairfax, USA

IEA

International Energy Agency [3]

Paris Cedex 16, Frankreich

IGU

Internationale Gasunion [4]

Hørsholm, Dänemark

ISO

International Organization for Standardization [5]

Genf, Schweiz

IWA

International Water Association [6]

London, United Kingdom

OECD 

Organization for Economic Cooperation and Development [7]

Paris Cedex 16, Frankreich

OECD Bonn Office

Organization for Economic Cooperation and Development - Bonn Office [8]

Bonn