| Company name | Reg. code |
|---|---|
| Y3S OÜ | 12149871 |
| Y.S.D. OÜ kustutatud | 12676091 |
| B4Y3S OÜ | 16950933 |
| Y.S.M TECHSAVVY OÜ | 16677124 |
| A.F.Y.S. OÜ kustutatud | 11617548 |
| S.L.A.Y OÜ | 16809442 |
| S.Y.B. ESTONIA OÜ | 10991629 |
| TONY´S PAN Y VINO OÜ | 14936277 |
| R.A.Y.S. GROUP OÜ | 14899122 |
| Y.O.D.A.S OÜ | 12436798 |
| M.S.Y TECH DESIGNERS OÜ | 17143005 |
| A.T.Y.S.X OÜ (former name Siesta Events OÜ) | 16794574 |
| BOATS AND MOTORS OÜ (former name Y-S Kaubanduse OÜ) | 12204446 |
| S.Y.N.D.I.C.A.T. E. RECORDINGS OÜ | 11926858 |
| KALASTUS.EU MÄNNIKU OÜ (former name Nordic Carry's OÜ) | 11111754 |
| YGG SPV OÜ | 16248587 |
| YES SPORT OÜ | 10694624 |
| YI STUDIO OÜ | 17298564 |
| STUDIO YX OÜ (former name Service Profs Group) | 11768017 |
| YONO SENSE OÜ | 16666534 |
| YANA STEEL OÜ | 17352298 |
| SIAMO YOGA OÜ | 16724119 |
| YMK SPORTS OÜ | 17428943 |
| YKSIK SELL OÜ kustutatud | 16000798 |
| SSR YHTIÖT OÜ kustutatud | 14492254 |
| YK SERVICES OÜ | 14333662 |
| SPARTA YNDL OÜ kustutatud | 17151453 |
| YEKA STUDIO OÜ (former name Seeb Co OÜ) | 14385400 |
| SPECE YINJA OÜ kustutatud (former name Escape Room OÜ) | 12780724 |
| YX SERVICES OÜ | 12407119 |
| YASEEN TECH SERVICES - YTS OÜ kustutatud | 16523243 |
| YCAPITAL SLP OÜ kustutatud | 16041768 |
| SAARE YACHTS OÜ | 14086815 |
| FEEL YOUR SPA OÜ | 12978886 |
| YUDES STUDIO OÜ | 14825141 |
| YUROPE STEEL OÜ kustutatud | 12947880 |
| YES SOLUTIONS OÜ | 16311819 |
| YELLOW SHADOW OÜ | 17072340 |
| YOUNG SUCCESS OÜ kustutatud | 12195635 |
| THE YOGA SPACE OÜ | 17287419 |
| YAWARA SPORTS OÜ | 14289122 |
| YAZZ SERVICES OÜ | 16540690 |
| YHT SOLUTIONS OÜ | 17152949 |
| YEV SOTSMEDIA OÜ | 14319981 |
| YAMMY SYSTEMS OÜ kustutatud | 11022298 |
| YELK SOFTWARE OÜ | 17104301 |
| YMML SERVICES OÜ | 16767703 |
| PAINT YOUR SKY OÜ | 16518414 |
| YELENA SALONG STAV OÜ kustutatud | 14298813 |
| FORST MASKINTEKNIKA OÜ kustutatud (former name Saturnus Yhtiöt OÜ) | 14050609 |