- Sovereign Holidays
- Swagger and Swoon
- SpeedDate
- Santa.co.uk
- Skype
- Specsavers
- Swimshop
- Subside Sports
- See Tickets
- Seasalt Organic Cotton Clothing
- Setanta Sports
- Shoes International
- Selfridges
- Saxoprint
- Ski Republic
- Slimming World
- Saverstore
- Sheraton Hotels
- Snowpaw Store
- Silver By Mail
- Superfi Online
- Sephora
- Showcase Cinemas
- Sizzling Pubs
- Suck
- Simply Colors
- Simply Electronics
- Splash Direct
- Scandinavian Airlines (SAS)
- Shavers.co.uk
- Shaadi
- SPORTSBIKESHOP LTD
- Scan Computers
- SmoothFitness.com
- Size
- SmugMug
- Sofa.com
- Swell UK
- Sheplers
- Steve Madden
- Sportfish
- SofaSofa
- Strings Direct
- Streetshirts.co.uk
- Stinky Ink Shop
- Sugarrays
- Spoiled Brat
- Seton
- Sparkling Strawberry
- SuperStickers
- Snainton Golf Direct
- Silentnight Beds
- Slaters
- Sofa Workshop
- Student Computers UK
- Scalextric
- Spex4Less
- Snug Mattress
- SafeLincs
- Sigma Sport
- Snappy Snaps
- Steenbergs
- Skate Warehouse
- Scot Rail
- Shop Savannahs
- Saress
- Santander Car Insurance
- SS20
- Stickylabels.com
- Shewee
- Shoon
- South African Airways
- Sky Sports Betting
- SkiDiscount
- Servicing Stop
- Spaceslide
- Smile 4 You
- Silverline
- Sunweb Holidays
- Snap Mad