- Madame Tussauds UK
- MaggieFrame
- Magic John
- Magnetic Bag Company
- MAH
- Mala Collective
- Mantar Lamps
- Manutan
- MarbleSpark
- Mark Paulda & Co
- Marucci Sports
- Masu Home
- Materiae
- MaXpeedingrods
- Meaningful Tree
- Meat Your Maker
- MeDo
- Mega Motor Madness
- Mellow Sleep
- Merchant 1948
- Meridian Grooming
- Meross
- Meshki
- MeUndies
- MFI Medical
- Mila
- Milk Makeup
- Mint Ca
- Mira
- MixBook
- MochaHost
- Mod Paws
- MOJAWA
- Monument Grills
- Morning Brew
- Mowrator
- mSpy
- MuleRun
- Musely
- Musictoday
- Musso EU
- My Lala Leggings
- My Place Hotels
- Mymense DE
- MyNemi
- Myron
- Mystic Labs
- Mytyres
