- L'Occitane en ProvenceBeauty & grooming · 197655
- L'OréalBeauty & grooming · 190979
- L.K.BennettFashion & accessories · 199064
- LacosteFashion & accessories · 193385
- LADbibleMedia, music & games · 201267
- Laing O’RourkeBusiness & industry · 197870
- LakelandHome & design70
- LamborghiniCars, bikes & motorbikes · 194873
- Land RoverCars, bikes & motorbikes67
- Land SecuritiesBusiness & industry · 194448
- Laphroaig distilleryDrinks · 181576
- Las IguanasRestaurants & cafés · 199185
- lastminute.comTravel & hotels · 1998
- Latitude FestivalArts, culture & events · 2006
- Laura AshleyFashion & accessories · 1953
- Laurent-PerrierDrinks · 181267
- LavazzaDrinks · 189558
- LazardBanks, insurance & finance · 184861
- LBCMedia, music & games · 197379
- Le CreusetHome & design · 192573
- Lea & PerrinsFood · 183770
- Lebara GroupEnergy, telecoms & utilities · 2001
- Lee CooperFashion & accessories · 190861
- Leeds Building SocietyBanks, insurance & finance · 1875
- Legal & GeneralBanks, insurance & finance · 1836
- LEGOShops & marketplaces · 1949
- Legoland WindsorArts, culture & events79
- LeicaTech & gadgets · 186961
- LEONRestaurants & cafés · 200458
- Levi'sFashion & accessories · 185358
- LexusCars, bikes & motorbikes · 198982
- Leyland TrucksBusiness & industry · 199361
- Liberty GlobalEnergy, telecoms & utilities · 200564
- Liberty LondonShops & marketplaces · 187570
- LidlShops & marketplaces · 197373
- LifebuoyBeauty & grooming61
- LillywhitesShops & marketplaces · 1925
- Linde GroupBusiness & industry76
- LindtFood61
- The Line of Best FitMedia, music & games · 200770
- Links of LondonFashion & accessories · 199055
- LinksysTech & gadgets · 198861
- Lister CarsCars, bikes & motorbikes · 195452
- Little GreeneHome & design61
- Little White LiesMedia, music & games76
- Liz EarleBeauty & grooming67
- Lloyd's of LondonBanks, insurance & finance · 168882
- Lloyd's RegisterBusiness & industry · 176070
- Lloyds BankBanks, insurance & finance · 199585
- Lloyds Banking GroupBanks, insurance & finance · 200976
- LoakeShops & marketplaces · 188052
- Loch Lomond distilleryDrinks · 196673
- Locksmith AnimationMedia, music & games · 201455
- LoganairTravel & hotels · 196255
- LogitechTech & gadgets · 198179
- LondisShops & marketplaces · 195979
- London ColiseumArts, culture & events · 190479
- London EV CompanyCars, bikes & motorbikes · 201352
- London EyeArts, culture & events · 199973
- London Gatwick AirportTravel & hotels55
- London Heathrow AirportTravel & hotels73
- London MarathonSport & fitness · 1981
- London Metal ExchangeBanks, insurance & finance · 1877
- London North Eastern RailwayTravel & hotels · 201879
- London RecordsMedia, music & games · 1947
- London Review of BooksMedia, music & games · 197982
- London Stansted AirportTravel & hotels70
- London Stock Exchange GroupBanks, insurance & finance73
- London ZooArts, culture & events · 182870
- Lonely PlanetTravel & hotels · 197255
- LookersCars, bikes & motorbikes · 190873
- LotusCars, bikes & motorbikes · 195264
- Louis VuittonFashion & accessories · 1854
- LucozadeDrinks · 192755
- LufthansaTravel & hotels · 1926
- lululemonSport & fitness · 1998
- LurpakFood · 190176
- LushBeauty & grooming · 199579
- LV=Banks, insurance & finance · 1843
- Lyca MobileEnergy, telecoms & utilities · 200652
- Lyceum TheatreArts, culture & events · 183452
- Lyle & ScottFashion & accessories · 187467
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