| Company name | Reg. code |
|---|---|
| RALPHS OÜ | 16642120 |
| RALPHSON OÜ kustutatud | 12819917 |
| RALPH AND THEODORE OÜ | 16873316 |
| RALDUS OÜ | 17184151 |
| RALABS OÜ | 14729868 |
| RALEES OÜ kustutatud | 10327665 |
| RALOS OÜ | 11601665 |
| RALVAS OU OÜ | 14243025 |
| RALIKS EHITUS OÜ | 14365596 |
| RALOS-KIVI OÜ | 10667892 |
| SERNAMBETIBA INVEST OÜ kustutatud (former name Ralph Stock Invest OÜ) | 12705964 |
| RAPPOS OÜ | 14547363 |
| MALPAS OÜ kustutatud | 12403466 |
| NALPHA OÜ | 16637449 |
| ALPOS OÜ | 17079879 |
| ALPHA OÜ | 10904027 |
| ALPS2ALPS OÜ | 16448688 |
| ALPHA IT OÜ | 16127168 |
| ALPHA SALES OÜ | 14258274 |
| ALPHA PIONEERING OÜ (former name AI Time Journal OÜ) | 14588729 |
| ALPHA BONDED OÜ | 12129118 |
| URSINHO ALPHA OÜ | 17442162 |
| ALPHA VENTURES OÜ | 16300299 |
| ALPHA LEARNING OÜ | 14853195 |
| ALPHA WAVE OÜ | 16922776 |
| ALPHA PROFIT OÜ | 12769958 |
| ALPHA BRAVO OÜ (former name OÜ Albin Capital) | 11506375 |
| ALPHA WIZARD OÜ | 17226145 |
| ALPHA MOTORS OÜ | 14903674 |
| LOADING RAMPS OÜ | 17354943 |
| ALPHA UNION OÜ | 14682641 |
| ALPHA BELLE OÜ | 14916642 |
| ALPHA BEAN OÜ | 12181716 |
| ALPHA KINNISVARA OÜ | 11574550 |
| ALPHA 3D OÜ (former name Alpha AR OÜ) | 14586044 |
| ALPHA DIGITAL OÜ | 14512382 |
| ALPHA GAIN OÜ | 16745050 |
| AEGIR ALPHA OÜ | 17309301 |
| ALPHA COMPANY OÜ (former name Sharpfit OÜ) | 14812204 |
| ALPHA QUANTUM OÜ kustutatud | 16023569 |
| ALPHA GROWTH OÜ | 16621230 |
| ALPHA WOOD OÜ kustutatud | 14032376 |
| ALPHA MULTITRADE OÜ | 11726361 |
| ALPHA CMA OÜ | 14813988 |
| RESPONSIBLE ALPHA OÜ kustutatud | 17123563 |
| ALPHA MARKETING OÜ | 10678861 |
| TOOMING ALPHA OÜ | 17274233 |
| ALPHA3 CONSULTING OÜ | 16785109 |
| ALPHA HOSTEL OÜ kustutatud | 14785915 |
| ALPHA PRODUCTIONS OÜ (former name Devil Productions OÜ) | 14401895 |