| Company name | Reg. code |
|---|---|
| L-ENGINEERING OÜ | 10490962 |
| R.L ENGINEERING OÜ | 16772147 |
| Q&L ENGINEERING OÜ | 14296292 |
| W4L ENGINEERING OÜ kustutatud | 14601855 |
| LC ENGINEERING OÜ | 17456448 |
| LMM ENGINEERING OÜ | 17466004 |
| ENGINEERING LAB OÜ | 14212674 |
| LION ENGINEERING OÜ kustutatud | 10948059 |
| LEND ENGINEERING OÜ | 11547948 |
| LINE ENGINEERING OÜ | 10945245 |
| LIGNUM ENGINEERING OÜ | 16904324 |
| LANDEX ENGINEERING OÜ | 14462359 |
| LÖWENEU ENGINEERING OÜ kustutatud | 11882782 |
| LUXMARK ENGINEERING OÜ | 14916636 |
| LEANPARK ENGINEERING OÜ kustutatud | 14159508 |
| LAANSALU ENGINEERING OÜ | 17425324 |
| LANSOMEL ENGINEERING OÜ | 11313200 |
| LM ENGINEERING HOLDING OÜ (former name Linkmet Marine Engineering OÜ) | 14923518 |
| LAND MARINE ENGINEERING OÜ | 14392179 |
| SEA AIR LAND ENGINEERING OÜ kustutatud | 12557794 |
| LAVAL CONSULT OÜ (former name Laval Engineering OÜ) | 14294732 |
| ELECTRICAL SYSTEMS OÜ (former name Electrical Systems Engineering Ltd OÜ) | 14235586 |