- MB objekti d.o.o.
- M.G.R. d.o.o.
- Madato d.o.o.
- Madm ugoprom d.o.o.
- Mafo inženjering d.o.o.
- Mafo prus d.o.o.
- Magična svjetlost d.o.o.
- Major & co. D.o.o.
- MarinaLab opus d.o.o.
- Marine trade d.o.o.
- Mar-ko-ing d.o.o.
- Markovac d.o.o.
- Matica Zagreb d.o.o.
- Mato četkarstvo
- Markek d.o.o.
- Martina promet d.o.o.
- Mataš-pršutane Jasenice d.o.o.
- Mativo d.o.o
- Mazić d.o.o.
- Maxima prof d.o.o.
- MB Swati d.o.o.
- Medek Medvarić d.o.o.
- Media commerce d.o.o.
- Media marketing d.o.o.
- Mediaprint-tiskara Hrastić
- Medicinski laboratorij Vera Čarapina
- Medident d.o.o.
- Mediotehna d.o.o.
- Medvet
- Megacolor Zagreb d.o.o.
- Mes d.o.o.
- Mevjema d.o.o.
- Metalac Sever d.o.o.
- Micros Fidelio Hrvatska d.o.o.
- Mihić mobiteli
- Minago d.o.o.
- Miro tartufi d.o.o.
- Misal-pjenušci Peršurić d.o.o.
- Mobilotehnika d.o.o.
- Modni salon In moda
- Modus international grupa d.o.o.
- Modus Beauty Card
- Modus Pet Card
- Montus tim d.o.o.
- Motori Grigić d.o.o.
- MP Perković d.o.o.
- Moto centar d.o.o.
- MPM trgovina d.o.o.
- MS drvo dizajn d.o.o.
- Munger d.o.o.
- MVG d.o.o.
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L-Lj.
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