All M Brands
- M.M.LaFleur
- Maaji
- Maaji Kids
- Madden Girl
- Madewell
- Maelstrom
- MAGNA-TILES
- Magnanni
- MALIN+GOETZ
- manduka
- Marc Fisher
- Marc Fisher LTD
- Marc Jacobs
- Marc Joseph New York
- Mario Badescu
- Marjen
- Marmot
- Marvel
- Matisse
- Maui Jim
- MDSolarSciences
- MEGAComfort
- melin
- Melissa & Doug
- Mellow Walk
- Mephisto
- Merrell
- Merrell Kids
- Merrell Work
- MeUndies
- MIA
- Mia Kids
- Michael Kors
- MICHAEL Michael Kors
- MICHAEL Michael Kors Kids
- Michael Stars
- Mini Melissa
- Miraclesuit Shapewear
- Miz Mooz
- Mizuno
- Mizuno Kids
- Mod-o-doc
- Monica + Andy
- MOON BOOT
- MOON BOOT Kids
- Moral Code
- Mountain Hardwear
- Mountain Khakis
- Moxie Trades
- Mud Pie
- MUK LUKS
- Munro