Stores - M
- MacBack
- Made Here With Love
- Made In Paradis
- Mafett
- Mallet
- Mama Bamboo
- Maple Parking
- Maplin
- Marco Paul
- Margot Fox Jewellery
- Marloe Watch Company
- Mattressman
- Maxpeedingrods
- Maxwell Scott Bags
- Maya Brenner
- Medi UK
- Memory Foam Warehouse
- Meross
- Merrell
- Miki House
- Milanoo
- Millennium
- Millie & Ralph
- Minerva
- Minicabit
- Minisforum
- Mint Outdoor
- Miss Patina
- Missacc
- Missy Empire
- Mo Bro's
- Mobile Direct
- Modmo
- Monsgeek
- Moonkie
- Moonpig
- Motoin
- Motorsport Tickets
- Mozillion
- Mr Key Shop
- Munbyn
- Musement
- My Fabrics
- My Health Sanctuary
- My Kind of Cruise
- My Mini Maker
- My Tool Shed
- MyFlowers
- MyMemory
- Myprotein
- Mystery Box Shop
- Mystery Dice Goblin