- Milkntoast
- Modetalente
- Mojo Licensing
- MostBranded
- Mommore
- Metagauss
- My Passion Media Inc
- My Caring Dog
- Morgan & Taylor (AU)
- Miss Pap
- Martha Stewart Wine Co.
- Macy's Wine Cellar
- Milk Makeup
- Michelin
- M Andrews Sartorial Luxury
- M is for Monster
- M.LaHart
- M3D
- Machform
- Maceoo
- Macro Plant
- MadeWorn
- Magazine Reader Mall
- MaggieMoo's
- Magformers
- Magic Tracks
- MagicalButter.com
- Magickal Folk
- MagicWand Weddings
- Magix Online Services
- Magicsuit
- Magnanni
- Magnetic Me
- Magpul
- Mags For Miles
- Maiden Moon Apothecary
- Mail Order Mystery
- Mailboxes.com
- Maileg
- Main Event Entertainment
- Main Performance PC
- Mainland Skate & Surf
- MainStay Suites
- Maison Midi
- Maine Lobster Now
- Major League Gaming
- Majestic All Virgin Hair
- Make Life Easier
- MakeBeer
- Maker Faire
- Malco Theatres
- Malindo Air
- Malone Souliers
- Malibu String Bikini
- MAM
- Mama Bird Box
- MamaSezz
- Man-Pack
- ManageEngine
- Mandarin Oriental Hotel Group
- Mango Peruvian Cuisine
- Manhattan GRE Prep
- Manhattan Portage
- Mano's Wine
- Manolo Blahnik
- Mansion Schools
- Manly Bands
- Mansur Gavriel
- MAPILab
- MaraPets
- Marajo
- MarbleWarehouse
- Marble Slab Creamery
- MantraBand
- Marcy's Secret Ingredients
- Margaret Howell
- Margaritaville
- Marie Callender's
- Marine Corps Direct
- Marine Parts Source