Bedrift M - Kolsås
- Masterplan AS
- Malmskrivergården AS
- Matoka AS
- Mentoring AS
- Mepo AS
- Medek AS
- Maronor AS
- Midtstuen AS
- Micropower
- Mjøsli AS
- Magnus Frøysok
- Meny Kolsås
- Marits Verden AS
- Mari Aspelund
- Max Nyberg
- Marianne Meikle
- Marie Gjerver
- Mottram Personel
- Maow Taxi
- Magne Bentzen
- Mb Holdings AS
- Myrvang Drift
- Masst Rådgivning Enk
- Marius Næss
- Molin Interesseforening
- Marianne Egeberg
- M Pettersen AS
- Marianne Mangnes Aas
- Malbun Eyrun Thune
- Minuskel Consult Halvorsen
- Matre IT-Kompetanse
- Memento Mori Holding AS
- Mm 143 Holding AS
- Mahar Anwar Gruppen AS
- M. Røsnæs Consulting
- M.Pedersen Consulting
- Martin Dimmen- Tollisen
- May-Brith Ødegaard
- Minprestasjon Arthur Mjelde Halvorsen
- MC Transport Mouhcine Chellal
- Monicare Monica Finneid Nevrorefleksolog
- Maritsverden Marit Mediås Hasvang
- Mester Grønn Kolsås Senter
- Mh Consulting Morten Hegge
- Møbelsnekker Inger Lise Hole
- Min Transport - Harald Bull-Hanssen
- Mattis Næss Kurs og Trening
- Major Audio Morten A Jorsett
- Militært Kvinnelig Nettverk Avdeling Oslo og Omegn