| CG and Associates ( Sparks, NV ) | CGI Silvercote Inc. ( Solon, OH ) | CH Capital, Inc. aka CH Capital, LLC |
| CG Holdings, LLC | CGI Technologies and Solutions Inc. ( Fairfax, VA ) | CH CHEMICAL (PTY) LTD. ( Elandsfontein, ZA ) |
| CG&G Enterprises ( Casper, WY ) | CGI-AMS Inc. ( Fairfax, VA ) | CH HI TECH CO., Ltd. ( Wongok-Myeon Anseong-Si, Gyeonggi-do ) |
| CG4 Solutions, Inc. ( Centerville, UT ) | CGI-Promotion AB( Ronneby ) | CH HK CORP. LTD. ( KOWLOON, HK ) |
| CGC Inc. ( Oakville, CA ) | CGK Computer Gesellschaft Konstanz mbH( Constance ) | CH Products ( San Marcos, CA ) |
| CGE Compagnia Generale Elettromeccancia SPA ( Milan, IT ) | CGL Systems LLC ( Gansevoort, NY ) | CH Scientific , LLC ( Flemington, NJ ) |
| CGE Compagnia Generale Elettromeccanica SpA ( Milan, IT ) | CGM, Inc. ( Racine, WI ) | Ch. Beha BmbH ( Glottertal, DE ) |
| Cgee Alsthom ( Levallois-Perret, FR ) | CGP INDUSTRIES ( Cebazat, FR ) | Ch. Beha GmbH Techische Neuentwicklungen( Glottertal ) |
| CGG Marine | CGP LLC ( Easton, MD ) | CH. Beha GmbH Technische Neuentwicklungen |
| CGG Marine( Massy ) | CGR MeV ( Buc, FR ) | Ch. Beha GmbH Technische Neuentwicklungen( Glottertal ) |
| CGG MARINE ( MASSY, FR ) | CGR Products, Inc. ( Decatur, AL ) | Ch. Beha GmbH Technische Neuentwicklungen( Glotttertal ) |
| CGGVeritas Services Inc. | CGR Ultrasonic( Villenoy les Meaux ) | Ch. Beha GmbH Technische Neuntwicklungen( Glottertal ) |
| CGGVeritas Services Inc. ( Houston, TX ) | CGS Publishing Technologies | Ch.1 Inc. ( Santa Ana, CA ) |
| CGI Communications, Inc. | CGS Publishing Technologies International GmbH ( Hainburg, DE ) | CH.sub.2 O Incorporated ( Olympia, WA ) |
| CGI Downhole Solutions Inc.( Calgary ) | CGS SENSORTECHNIK GMBH ( Lanfach, DE ) | CH20 Incorporated ( Olympia, WA ) |
| CGI Group AG | CGtime, Inc | CH2M HILL Canada Limited ( CH2M HILL, Inc., Englewood ) |
| CGI Pharmaceuticals, Inc. ( Branford, CT ) | CH Administration, Inc. ( Dallas, TX ) | |
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