| # |
| 7 Seas Holiday | 45 Victoria Road, Surbiton | 7seasholidays.co.uk | +44 20 3968 0900 | |
| A |
| A-Lanka Travelnot edited since 2021 | 171 Tooting High Street, Tooting | | +44 20 8672 5551 | |
| Ababeel Group Travel & Tours | 518 Roman Road, Bow | | +44 20 8981 4447 | |
| Abbotts Travelnot edited since 2021 | 134 George Lane, South Woodford | abbottstravel.com | +44 20 8989 9445 | |
| Ace Travelnot edited since 2016 | 363A Hoe Street, Leyton | | | |
| Adams Travel Agent | Old Kent Road, no street on record | | | |
| Aerospace Travel | 37 Vicarage Lane, Stratford | | | |
| Air International | 25 Station Road, Greenhill | | | |
| Al-Munanot edited since 2022 | 109a Uxbridge Road, Shepherd's Bush | almounatravels.com | +44 20 8740 6637 | |
| Amaana Toursnot edited since 2019 | Barking Road, East Ham | | | |
| Anemone Travel & Holidays Ltdnot edited since 2020 | 109 Myddleton Road, Bowes Park | anemoneholidays.co.uk | | |
| Ariana Express Travelnot edited since 2020 | Hounslow, no street on record | | | |
| Asian Union | 174 Edgware Road West Hendon Broadway, West Hendon | asianunion.co.uk | | |
| B |
| Blue Cube Travel | 8 Kew Bridge Road, Strand-on-the-Green | bluecubetravel.co.uk | +44 20 8948 8188 | |
| Bodrum Holidays | Ponders End, no street on record | bodrumholidays.org | | |
| C |
| Caria Holidays | 9 Grand Parade, Harringay | cariaholidays.co.uk | +44 20 8211 0001 | |
| Carlton Leisurenot edited since 2018 | Rayners Lane, no street on record | | | |
| China Travel Centre | 124 Euston Road, St Pancras | | | |
| Crystal Travel | 12 Stephen Mews, Soho | crystaltravel.co.uk | +44 2030237773 | |
| D |
| Dipa Travel | 17 Leigh Street, King's Cross | | +44 20 7383 2500 | |
| Diplomat Travel | 471 Green Lanes, Palmers Green | diplomat-travel.com | +44 20 7730 2201 | |
| E |
| Expedia | 407 St. John Street, Angel | | | |
| F |
| Flight Centre | 31 Market Place, Kingston upon Thames | flightcentre.co.uk | +44 2085 415910 | |
| G |
| G&E Travels Ltd | 159 Broad Street, Dagenham | | | |
| Global Travel & Umrah Ltd | 90 Hoe Street, Walthamstow | | | |
| Goldwing Travel | 29 Turnpike Lane, Wood Green | | | |
| H |
| Harridge Group | 116-118 South Ealing Road, Ealing | | | |
| Hays Travel | Bromley, no street on record | haystravel.co.uk | +44 20 3930 9757 | |
| I |
| Imbel Travel | 22 West Green Road, South Tottenham | imbeltravel.com | +44 20 8809 5522 | |
| Interopa Holidays Ltd | 21-23 Chilworth Street, Paddington | interopa.co.uk | +44 20 7258 0009 | |
| J |
| Jet-Fly | 303 High Road Leytonstone, Maryland | jetfly.co.uk | +44 20 8556 1818 | |
| Jumbo travel LTDnot edited since 2014 | 157 Robert Street, Fitzrovia | | | |
| K |
| Kushiara | 319 Commercial Road, St. George in the East | | +44 20 7790 1234 | |
| L |
| Lagrange Holidaysnot edited since 2021 | 168 Shepherds Bush Road, Brook Green | lagrange-holidays.co.uk | +44 20 7371 6111 | |
| London Travelnot edited since 2014 | Peckham, no street on record | | | |
| M |
| Mark Warner | 20 Kensington Church Street, Kensington | markwarner.co.uk | +44 333 305 9795 | |
| Masterfare | 244 Vauxhall Bridge Road, Victoria | masterfare.co.uk | +44 20 7420 7333 | |
| Minorca Sailing | 58 Kew Road, Richmond | minorcasailing.co.uk | +44 20 8948 2106 | |
| N |
| Naan Staap | 30 South Road, Southall | naanstaap.co.uk | +44 20 3093 6446 | |
| S |
| Salahuddin | 6 Greatorex Street, Whitechapel | salahuddinhajjandumrah.com | | |
| SastiFlight.comnot edited since 2019 | 553 High Road, Wembley | sastiflight.com | +44 20 8902 0074 | |
| Simply Travel & Toursnot edited since 2019 | 68 Station Parade, Barking | | | |
| Star Visa Services | 19 New College Parade, South Hampstead | starvisaservices.co.uk | +44 20 7487 3544 | |
| T |
| Travel Department | 78 York Street, Marylebone | traveldepartment.co.uk | +44 20 3966 5882 | |
| Travel Express | 233 Seven Sisters Road, Finsbury Park | | | |
| Travel Gallerynot edited since 2020 | 5a Gloucester Road, South Kensington | travel-gallery.co.uk | +44 20 7225 1483 | |
| Travelbagnot edited since 2012 | Covent Garden, no street on record | | | |
| Travoliday | 36 Woodgrange Road, Forest Gate | travoliday.co.uk | | |
| Turqoise Holidays | 147 Northcote Road, Clapham Junction | | | |
| V |
| Voya Visa | 110 Kingsland Road, Shoreditch | | | |