Exhibit 15

Consent of Independent Registered Public Accounting Firms

We consent to the incorporation by reference in the following Registration Statements:

(1)

Registration Statement (Form S-8 No. 333-158684) pertaining to the Compagnie Générale de Géophysique-Veritas 2009 Stock Option Plan and the Compagnie Générale de Géophysique-Veritas 2009 Performance Share Plan, and

(2)

Registration Statement (Form S-8 No. 333-150384) pertaining to the Compagnie Générale de Géophysique – Veritas 2007 Stock Option Plan, the Compagnie Générale de Géophysique – Veritas 2008 Stock Option Plan, the Compagnie Générale de Géophysique – Veritas 2006 Performance Share Plan, the Compagnie Générale de Géophysique – Veritas 2007 Performance Share Plan, and the Compagnie Générale de Géophysique – Veritas 2008 Performance Share Plan

of our reports dated April 23, 2010, with respect to the consolidated financial statements of Compagnie Générale de Géophysique – Veritas and the effectiveness of internal control over financial reporting of Compagnie Générale de Géophysique – Veritas included in this Annual Report (Form 20-F) for the year ended December 31, 2009.

Neuilly-sur-Seine and Courbevoie, France
April 23, 2010

ERNST & YOUNG & AUTRES	MAZARS
/s/ Philippe Diu	/s/ Olivier Thireau
Philippe Diu	Olivier Thireau