This is a list of companies and organizations who are proud and public about their use of System Pvex in their business.（in Alphabetical order）
| CBS Co.,Ltd./Himekenkizai Co.,Ltd. | CHIYODA CORPORATION |
| COSMO ENGINEERING CO,.LTD. | CRESS TECH INC. |
| ENEOS Corporation | FUJISAKI ENGINEERING. |
| Hitachi Ltd., Infrastructure Systems Company | Idemitsu Engineering Co.,Ltd. |
| Idemitsu Kosan Co.,Ltd. | Ito Seikan Industrial Co.,Ltd |
| JAPAN NUCLEAR FUEL LIMITED | JNC Engineering Co. Ltd. |
| THE KAWATEX CO.Ltd | KOBELCO E&M Co.,Ltd. |
| MARUZEN PETROCHEMICAL Co.,Ltd. | Kyusyu Kisetsu Co.,Ltd. |
| MITSUI CHEMICALS, INC. | Mitsubishi Chemical Engineering Corporation |
| Mitsubishi Heavy Industries Ltd. | Mitsubishi Heavy Industries Transportation and Construction Engineering, Ltd. |
| MHI Power Technical Services Corporation (Phippines) | MITSUBISHI KAKOKI KAISHA, LTD. |
| MITSUBISHI KAKOKI ADVANCE, LTD. | NIPPON STEEL ENGINEERING CO,LTD. |
| Process Group Pty. Ltd.(Australia) | RAIZNEXT Corporation |
| Saint Louis University Baguio (Philippines) | Sankyu Inc. |
| SHINKO INDUSTRIES CO., LTD. MACHINERY DIVISION |
TAKADA CORPORATION |
| Teijin Engineering Limited | TOKKI Co.,ltd. |
| Tokyo Electric Power Services Co., Ltd. |