| Company |
| Country |
|
| |
| BP Exploration Operating Co. Ltd. |
United Kingdom | more » |
| |
| Corinth Pipeworks S.A. |
Greece | more » |
| |
| Corus Tubes Energy Business |
United Kingdom | more » |
| |
| Enagas S.A. |
Spain | more » |
| |
| ENI G&P |
Italy | more » |
| |
| E.ON Ruhrgas AG |
Germany | more » |
| |
| EUROPIPE GmbH |
Germany | more » |
| |
| Fluxys SA |
Belgium | more » |
| |
| GDF Suez (Reserach & Innovation Division) |
France | more » |
| |
| National Grid |
United Kingdom | more » |
| |
| N.V. Nederlandse Gasunie |
The Netherlands | more » |
| |
| Salzgitter Mannesmann Großrohr GmbH |
Germany | more » |
| |
| Salzgitter Mannesmann Line Pipe GmbH |
Germany | more » |
| |
| Shell Global Solutions International B.V. |
The Netherlands | more » |
| |
| SNAM Rete Gas S.p.A.
|
Italy | more » |
| |
| Tenaris Dalmine SPA |
Italy | more » |
| |
| Total E&P |
France | more » |
| |
| V & M France |
France | more » |
| |
