| Company name | Reg. code |
|---|---|
| MHS OÜ (former name GOOD OÜ) | 12482079 |
| MHS PRO OÜ (former name MHS Projekteerimine OÜ) | 12748583 |
| MHS TRADE OÜ kustutatud | 12086159 |
| MHS TRADE OÜ | 17081304 |
| MHS YHTIÖT OÜ kustutatud (former name 321Innovaatiot OÜ) | 14028692 |
| MHS REKLAAM OÜ | 12530097 |
| MHS COMPANY OÜ kustutatud | 12423993 |
| MHS KOOLITUS OÜ kustutatud | 10197989 |
| MHS SERVICES OÜ | 14020271 |
| MHS WEBMEDIA OÜ kustutatud | 12868078 |
| MHS SOLUTIONS OÜ | 11953756 |
| MHS KINNISVARA OÜ | 14923091 |
| MHS INVESTMENTS HOLDING OÜ (former name Longse Eesti OÜ) | 14482557 |
| BHS OÜ | 16178025 |
| MHM OÜ | 14685214 |
| FHS OÜ | 12616278 |
| MRS OÜ | 12063908 |
| MHRS OÜ | 16789509 |
| MHJ OÜ kustutatud | 11247428 |
| HMS OÜ | 11225943 |
| MES OÜ | 14453053 |
| 2MCS OÜ kustutatud | 12929764 |
| MGS1 OÜ | 16158950 |
| GHS OÜ | 14841826 |
| MHK OÜ | 17250362 |
| MLS OÜ | 12199136 |
| MKS OÜ | 14246414 |
| MHL OÜ | 12193116 |
| EHS OÜ | 17227647 |
| HHS OÜ | 12598735 |
| CHS OÜ | 12843034 |
| MOS OÜ | 12901412 |
| MHE OÜ | 12677015 |
| KHS OÜ | 16122403 |
| MDS OÜ | 14158957 |
| MES2 OÜ | 16079328 |
| MHB CONSULTING OÜ | 16447816 |
| MCS ENGINEERING OÜ | 14091526 |
| KHS MÍDIA OÜ | 16703073 |
| MPS PROJECT OÜ | 17312465 |
| MHW ACCOUNTANTS OÜ (former name DataStat OÜ) | 16081012 |
| HMS PARTNERS OÜ | 16018261 |
| MHE HOLDING OÜ | 14982900 |
| AHS GROUP OÜ | 14433263 |
| MHM INVEST OÜ | 12516938 |
| HMS PARTNERS OÜ kustutatud | 12964861 |
| MRS DEVELOPMENT OÜ | 14297140 |
| MHK ARENDUSGRUPP OÜ | 10722935 |
| MIS VARA OÜ | 17138731 |
| MJS CAPITAL OÜ kustutatud | 14209264 |