Seibu / Seibu Railway Company, Ltd. / 西武鉄道株式会社
Founded in 1894. HQ in Tokorozawa. www.seibu-group.co.jp
| Seibu E31 | |
| Seibu E851 |
EMUs
| 20000 series | |
| Seibu 001 | |
| Seibu 10000 series | |
| Seibu 101 | |
| Seibu 2000 | |
| Seibu 3000 | |
| Seibu 30000 | |
| Seibu 4000 | |
| Seibu 6000 | |
| Seibu 8500 | |
| Seibu 9000 | |
| Seibu N101 |
