| Company name | Reg. code |
|---|---|
| MACSEI OÜ (former name BistroLab OÜ) | 17161747 |
| MACSEIS EUROPE OÜ kustutatud (former name YELLOWSTONE HOLDING OÜ) | 12770743 |
| MACEI OÜ | 16814408 |
| MACSER GRUPP OÜ | 16020306 |
| MACLENI OÜ (former name OÜ Revalfix Baltic) | 12005184 |
| MACBET2020 OÜ | 16901828 |
| MACTEP OÜ kustutatud | 14424815 |
| MACLEN SUPPLIES OÜ kustutatud | 14172555 |
| R. MACHER OÜ | 14920193 |
| MARSEI HOOLDUS OÜ (former name Marsei OÜ) | 12041501 |
| MANSEE OÜ | 17044102 |
| MARKEI OÜ | 14834312 |
| MAPSER OÜ | 14079778 |
| MAKSMI OÜ | 10194985 |
| MADSER OÜ (former name MadSor OÜ) | 14095990 |
| MARSEP OÜ | 12879210 |
| MAKSER OÜ kustutatud | 10024303 |
| MASSET OÜ | 12804181 |
| MANSER OÜ (former name Golden Square OÜ) | 12253226 |
| MALSEV OÜ kustutatud | 14993200 |
| MARNEI OÜ | 16656984 |
| MAMSEL OÜ | 12903428 |
| MAIMEI OÜ | 12191949 |
| MADSEN OÜ kustutatud | 16822796 |
| MANSAI OÜ | 17008566 |
| MANVEI OÜ | 16555800 |
| HEPP WIEGAND OÜ (former name machen OÜ) | 14874949 |
| MACTE OÜ | 12803649 |
| MAMSLI PIRUKAPOOD OÜ kustutatud | 12280984 |
| MARSEL LOGISTICS OÜ | 16520300 |
| MARREI LAHENDUSED OÜ | 16703270 |
| MASSEN EQN OÜ kustutatud | 14397567 |
| MAASEL-KUJUNDUS OÜ | 10193201 |
| MARSEN PÕRANDAD OÜ | 16197430 |
| HUBER MANSER OÜ (former name Huber Manser Family Office OÜ) | 16006364 |
| MAISER PROJEKT OÜ | 11034611 |
| MARSEC INTERACTIVE OÜ | 17259328 |
| MATSELI KALA OÜ kustutatud | 10053776 |
| MARSEN TRADING OÜ (former name Marsen Trading UÜ) | 16465059 |
| MARSEL MAJAEHITUS OÜ | 11075923 |
| MARSEM SOLUTION OÜ | 16572129 |
| MANDLI MAMSEL OÜ | 12575119 |
| STEN MANSEN OÜ kustutatud | 11127910 |
| MARREI EHITUS OÜ kustutatud | 11571958 |
| SSL MACEO OÜ | 14843825 |
| MACTE GZS OÜ | 12722112 |
| MACTE DESIGN OÜ | 14102939 |
| MACHI SASEBO OÜ kustutatud (former name Escandelle OÜ) | 12696900 |
| MACTE AQUARIUM OÜ | 11159962 |
| HUBER MANSER WEALTH MANAGEMENT OÜ (former name BOP Capital OÜ) | 14683959 |