| Company name | Reg. code |
|---|---|
| HEA GROUP OÜ | 17337330 |
| HEA KORISTUS GROUP OÜ | 17073701 |
| HEAT-ENER GROUP OÜ | 12945616 |
| NORDIC HEAT GROUP OÜ kustutatud | 14774308 |
| HEAD SOLUTIONS GROUP OÜ (former name Luku-Expert OÜ) | 10407435 |
| HEAD ACCOUNTING GROUP OÜ | 12311231 |
| HEAVEN GROUP OÜ kustutatud | 12547927 |
| HEATEST GROUP OÜ kustutatud | 12036888 |
| HEALTH IT GROUP OÜ | 14415868 |
| HEADTRANS GROUP OÜ kustutatud | 12532848 |
| TRUU HEALTH GROUP OÜ | 17190631 |
| EURO HEALTH GROUP OÜ (former name Elite Finance Group OÜ) | 11531806 |
| HERA GROUP OÜ | 14757801 |
| MEDIMATKAT TALLINNAN TAKAPÄIVYSTYS OÜ (former name Health Travel Group OÜ) | 12981138 |
| MAKT GROUP OÜ kustutatud (former name MAKT Healthcare Group OÜ) | 14121121 |
| MODERN HEALTH GROUP OÜ kustutatud | 11659529 |
| BC HEALTHCARE GROUP OÜ | 16670895 |
| PREMIO HEALTH GROUP OÜ (former name KL Holding OÜ) | 16553787 |
| YOLO TECH OÜ (former name Heathmont Group OÜ) | 14609414 |
| UNDIKÜLA SÄRTS OÜ (former name Nordic Health Group OÜ) | 12873934 |
| TERRA OF HEAVEN GROUP OÜ (former name FS Credit OÜ) | 12992573 |
| HEALTH GROUP FINLAND OÜ (former name Regimen OÜ) | 12734664 |
| BALTIC HEATING GROUP OÜ | 10840089 |
| THE HEALTHY HUMAN GROUP OÜ | 17268014 |
| HEXA PETROL GROUP OÜ kustutatud | 12789346 |
| CONFIDO HEALTHCARE GROUP OÜ (former name MediHolding OÜ) | 12874945 |
| SCANDINAVIAN HEALTH GROUP OÜ (former name Pohjoismaiden Terveystukku OÜ) | 14541308 |
| KRAUSS KINNISVARA EHITUS OÜ (former name YEA Group OÜ) | 12494409 |
| BLUMMIN OÜ (former name EA GROUP OÜ) | 14281296 |
| LYRNOVA OÜ (former name Baltic Sea Vodka Group OÜ) | 14351944 |
| SCANDIC STREAM GROUP OÜ kustutatud (former name Baltic Sea Pellet Group OÜ) | 14551790 |
| COFCO TUNHE TOMATO CO.LTD OÜ kustutatud (former name Firena Group OÜ) | 14105932 |