All Stores A-Z - M
- M and Co
- M and M Direct
- Macback
- Macdonald Hotels
- Machine Mart
- Mackage
- Made in Design
- Made With Love and Sparkle
- Made.com
- Magazines Direct
- Magenta Flowers
- MagicBreaks
- Mainline Menswear
- Maison Threads
- Majestic Wine
- Malmaison
- Manchester City Shop
- Manchester United Megastore
- MANKIND
- Manuka Doctor
- Maple Parking
- Marella Cruises
- Marks and Spencer
- Masdings
- Master of Malt
- Matalan
- Mattress Next Day
- Mattress Online
- Mattressman
- MaxCleavage
- Memory Foam Warehouse
- Menai Holiday Cottages
- Menkind
- Mercury Holidays
- Merlin Cycles
- Mesh
- Metrofone
- Millennium Hotels
- Miller Harris
- Millets
- Millican
- Mini Model Shop
- Mio Skincare
- Mirafit
- Miss Selfridge
- Missguided
- Mister Spex
- Mitre Linen
- Mobile Phones Direct
- Mobiles.co.uk
- Moda in Pelle
- Molton Brown
- Monsoon
- Monster Pet Supplies
- Monster Supplements
- Montblanc
- Morphy Richards
- Moschino
- Moss Bros
- Mountain Warehouse
- Mrs Wordsmith
- Muddy Puddles
- Mummy And Little Me
- Muscle Food
- musicMagpie
- Musicroom
- Musto
- My 1st Years
- My Favourite Magazines
- My Memory
- My Tyres
- My Vegan
- MyBag
- Mylee
- MyParcelDelivery
- MyProtein
- myvitamins