Exhibit 8

List of CGGVeritas subsidiaries (March 31, 2012)

(Certain dormant or small subsidiaries of the Group have not been included in the list below)

French Companies	Head Office	% of Interest
CGGVeritas Services S.A.	Massy, France		100.0
Sercel Holding SA	Carquefou, France		100.0
Sercel SA	Carquefou, France		100.0
CGG Explo SARL	Massy, France		100.0
Geomar SAS	Paris, France		49.0

Foreign Companies	Head Office	% of Interest
CGGVeritas Services Holding B.V.	Amsterdam, The Netherlands		100.0
CGGVeritas Marine BV.	Amsterdam, The Netherlands		100.0
CGGVeritas Services Holding (Latin America) B.V.	Amsterdam, The Netherlands		100.0
CGGVeritas International SA	Geneva, Switzerland		100.0
CGG Marine Resources Norge AS	Oslo, Norway		100.0
Wavefield Inseis AS	Oslo, Norway		100.0
Multifield Geophysics AS	Bergen, Norway		100.0
CGGVeritas Services (Norway) AS	Bergen, Norway		100.0
Exploration Investment Resources II AS	Bergen, Norway		100.0
Exploration Vessel Resources AS	Bergen, Norway		100.0
Exploration Vessel Resources II AS	Bergen, Norway		100.0
CGGVeritas Services (UK) Ltd	Crawley, United Kingdom		100.0
Veritas DGC Limited	Crawley, United Kingdom		100.0
Veritas Geophysical Limited	Crawley, United Kingdom		100.0
Geoexplo	Almaty, Kazakhstan		100.0
Veritas Caspian LLP	Almaty, Kazakhstan		50,0
CGG Vostok	Moscow, Russia		100.0
Seismic Support Services	Moscow, Russia		100.0
Petrodata Consulting LLC	Moscow, Russia		100.0
CGG do Brasil Participaçoes Ltda	Rio do Janeiro, Brazil		100.0
Veritas do Brasil Ltda	Rio do Janeiro, Brazil		100.0
CGGVeritas Services de Mexico SA de CV	Mexico City, Mexico		100.0
Exgeo CA	Caracas, Venezuela		100.0
CGGVeritas Services Holding (U.S.) Inc	Delaware, United States		100.0
CGGVeritas Services (U.S.) Inc	Delaware, United States		100.0
CGGVeritas Land (U.S.) Inc	Delaware, United States		100.0
Alitheia Resources Inc	Delaware, United States		100.0
Veritas Investments Inc	Delaware, United States		100.0
Viking Maritime Inc	Delaware, United States		100.0
CGG Canada Services Ltd.	Calgary, Canada		100.0
CGGVeritas Services (Canada) Inc	Alberta, Canada		100.0
Hampson Russel Ltd	Alberta, Canada		100.0
Veritas MacKenzie Delta Ltd	Alberta, Canada		100.0
Veritas Geophysical (Canada) Corporation	Nova Scotia, Canada		100.0
CGGVeritas Services (Canada) Partnership	Nova Scotia, Canada		100.0
Veritas Geophysical III	Cayman Islands		100.0
Veritas Geophysical IV	Cayman Islands		100.0
CGGVeritas Services (Australia) Pty Ltd	Perth, Australia		100.0
CGGVeritas Services (Singapore) Pte Ltd	Singapore		100.0
CGGVeritas Services (Malaysia) Sdn. Bhd	Kuala Lumpur, Malaysia		100.0

Foreign Companies	Head Office	% of Interest
PT CGG Indonesia	Djakarta, Indonesia		95,0
P.T. CGGVeritas Services Indonesia	Djakarta, Indonesia		95,0
CGGVeritas Services India Private Ltd	New Delhi, India		100.0
CGGVeritas Technology Services (Beijing) Co. Ltd.	Beijing, China		100.0
Ardiseis FZCO	Dubai, United Arab Emirates		51,0
CGGVeritas Services (B) Sdn. Bhd	Brunei		100.0
Veritas Geophysical (Nigeria) Limited	Lagos, Nigeria		100.0
CGG (Nigeria) Ltd.	Lagos, Nigeria		100.0
Sercel England Ltd.	Somercotes, United Kingdom		100.0
Quest Geo Solutions Limited	Hampshire, United Kingdom		100.0
Optoplan AS	Trondheim, Norway		100.0
Sercel Inc.	Tulsa, United States		100.0
Sercel Canada Ltd.	Calgary, Canada		100.0
Sercel Australia	Sydney, Australia		100.0
Hebei Sercel JunFeng Geophysical Prospecting Equipment Co. Ltd.	Hebei, China		51.0
Xian Sercel Petroleum Exploration Instrument Co. Ltd.	Xian, China		51.0
Sercel Beijing Technology	Beijing, China		100.0
Sercel Singapore Pte Ltd.	Singapore		100.0

Each of our subsidiaries listed above is organised in the country or U.S. state in which its head office is located, and each such subsidiary does business under its registered name.