**EXHIBIT 21**

 

**SUBSIDIARIES OF THE REGISTRANT**

 

The following is a listof all subsidiaries, wholly owned except where noted, owned by the Registrantor one or more of its other subsidiaries at July 31, 2005:

 
| **Corporate Name of Subsidiary**                             | ** ** | **State or Country of Incorporation** | ** ** |
|--------------------------------------------------------------|------------|---------------------------------------|------------|
|                                                         |       |                                  |       |
| Alitheia Resources Inc.                                      |       | Delaware, U.S.A.                      |       |
| Veritas DGC Asia Pacific Ltd.                                |       | Delaware, U.S.A.                      |       |
| Veritas DGC Land Inc.                                        |       | Delaware, U.S.A.                      |       |
| Veritas Geophysical Corporation                              |       | Delaware, U.S.A.                      |       |
| Veritas Geophysical (Mexico) LLC                             |       | Delaware, U.S.A.                      |       |
| Veritas Investments Inc.                                     |       | Delaware, U.S.A.                      |       |
| Viking Maritime Inc.                                         |       | Delaware, U.S.A.                      |       |
| Hampson Russell GP Inc.                                      |       | Alberta, Canada                       |       |
| Hampson Russell Limited Partnership                          |       | Alberta, Canada                       |       |
| Time Seismic Exchange Ltd.                                   |       | Alberta, Canada                       |       |
| Veritas Energy Services Inc.                                 |       | Alberta, Canada                       |       |
| Veritas Energy Services Partnership                          |       | Alberta, Canada                       |       |
| Veritas MacKenzie Delta Ltd.                                 |       | Alberta, Canada                       |       |
| Veri-Illuq Geophysical Ltd. (49% owned)                      |       | Northwest Territories, Canada         |       |
| Yamoria Geophysical, Ltd. (49% owned)                        |       | Northwest Territories, Canada         |       |
| Veritas Geophysical (Canada) Corporation                     |       | Nova Scotia, Canada                   |       |
| Guardian Data Seismic Pty Limited                            |       | New South Wales, Australia            |       |
| Veritas DGC Australia Pty. Ltd.                              |       | Australia                             |       |
| HOT Engineering Gmbh                                         |       | Austria                               |       |
| Veritas do Brasil Ltda.                                      |       | Brazil                                |       |
| Veritas DGC (B) Sdn. Bhd.                               |       | Brunei                                |       |
| Veritas Geophysical I                                        |       | Cayman Islands                        |       |
| Veritas Geophysical III                                      |       | Cayman Islands                        |       |
| Veritas Geophysical IV                                       |       | Cayman Islands                        |       |
| Exploraciones Geofisicas Veritas  Geophysical Chile Limitada |       | Chile                                 |       |
| Veritas Geophysical (France) SARL                            |       | France                                |       |
| Veritas DGC Land Guatemala S.A.                              |       | Guatemala                             |       |
| P.T. Veritas DGC Mega Pratama (80% owned)                    |       | Indonesia                             |       |
| Veritas DGC (Malaysia) Sdn. Bhd. (70% owned)                 |       | Malaysia                              |       |
| Veritas Energy Services (Nigeria) Limited                    |       | Nigeria                               |       |
| Digicon (Nigeria) Ltd. (60% owned)                           |       | Nigeria                               |       |
| Veritas Geophysical (Nigeria) Limited (60% owned)            |       | Nigeria                               |       |
| Veritas Geophysical Services (Norway) AS                     |       | Norway                                |       |
| Veritas DGC (Mexico) S. de R.L. de C.V.                      |       | Mexico                                |       |
| Veritas Servicios Geofisicos S. de R.L. de  C.V.             |       | Mexico                                |       |
| Veritas Servicios Technicos S. de R.L. de  C.V.              |       | Mexico                                |       |
| Veritas DGC Singapore Pte Ltd.                               |       | Singapore                             |       |
| Veritas DGC Limited                                          |       | United Kingdom                        |       |
| Veritas Geophysical Limited                                  |       | United Kingdom                        |       |
| Digicon de Venezuela, C.A                                    |       | Venezuela                             |       |
| Veritas Geoservices Ltd. SA                                  |       | Venezuela                             |       |

 

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